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Brakes/Levers/Pads

$70.00
The SRAM Level brake levels the playing field with power and reliability stuffed into a lightweight package. This is no-nonsense performer, but don’t let its understated disposition fool you—Level gives you the art of braking in minimalist form.
$63.00
- A mountain bike specific rotor designed to improve brake performance while reducing noise and increasing heat dissipation - New brake track pattern for increased pad traction and recessed spokes with thermal dissipating paint - HS2 is more powerful, and quieter rotor with best-in-class heat management - Hub Compatibility: Center Lock - Disc Material: Steel
$42.99 - $59.99
- XT-grade 6-bolt rotor - Stainless steel braking surface for long lasting durability - Cutouts help with mud clearing and cooling - Large forged alloy spider supports rotor surface, increasing rigidity and heat dissipation while reducing weight - Comes complete with mounting hardware
$22.99
These replacement brake pads are designed specifically for full-carbon ENVE rims and wheelsets with a smooth surface brake track. Carbon fiber rim construction and design are only part of the solution to solving the heat equation. Brake pads play an integral role in ride performance and long-term durability of the wheel.
$75.00
- Special patented interlocking of the outer and inner rings (Dovetail Interlink Technology) giving optimum braking performance even under heavy loads - In addition, maximum heat resistance and stability - E-Bike optimized - 6 steel mounting screws included
$302.00
For the Ultimate, we held nothing back. Our engineers sculpted the finest materials—titanium and carbon fiber—to make this our lightest four-piston brake ever. Power, modulation, and lever feel set a new standard. Personalization is quick and intuitive. And, for performance—well, our test riders didn't dub it the "Mini-Code" for nothing. - More caliper stiffness and a new pad compound with bite - Pivot bearings for crisp lever feel and a fatigue-free ride - SRAM's best power-to-weight ratio in a four-piston brake
$25.00 - $58.00
Avid's Front 180mm/Rear 160mm Post Bracket Hardware Kithas everything you need to mount a front 180mm or a rear 160mm rotor (sold separately) to your bike.
$80.00
The SRAM CenterLine XR (CLX-R) rotor works in tandem with the SRAM eTap AXS drivetrain. It's designed specifically for road riding — and to keep braking quiet at every stop. - Streamlined form optimized for road use - CenterLine track offers quiet brake operation - Two-piece design reduces weight - Includes stainless steel rotor bolts
Jagwire Sport Organic pads feature an all-new resin compound. Mounted on a steel backing plate, this compound gives good power and modulation, while keeping noise to a minimum. Great for riders primarily riding in dry conditions. - Compatible with Shimano Dura-Ace R9170, Metrea U5000, Ultegra R8070, and Road RS305, RS405, RS505, and RS805 - Compatible with Rever MCX1 Flat-Mount and MCX2 Flat-Mount
$17.99 - $24.99
These disc brake pads fit a variety of SRAM and Avid brakes and offer industry leading brake compounds for consistent, confident performance. - Low noise, high performance semi-metallic compound lasts longer than resin - Steel backing plate
$33.79
Sleek, balanced and consistent. Shimano's Tiagra 4700 series brakes provides serious entry-level riding performance with trickle-down technology from Dura Ace. - Model Number: BR-4700 - Series: Tiagra - Brake Type: Super SLR Dual Pivot - Cartridge Shoe Holder: R50T5 / R50T4
$131.00
SRAM's Rival Brake Caliper Set delivers competition-ready speed control, light weight and lovely streamlined aesthetics that will enhance any road bike. Featuring a powerful dual-pivot design and cold-forged-aluminum construction, the Rival brakes offer excellent stopping power. You'll appreciate the easy-to-replace cartridge brake pads, and the handy quick release and adjustment barrel too.
$139.99
Riding with complete confidence in your brakes lets you go faster. With Shimano's Deore XT discs you'll be able to hold your speed until the last second in any situation. The post-mount, mono-body caliper design makes this brake super light and extremely rigid. Cooling fins attached to the pads combat the dreaded fade on long downhills and actually make the pads last longer. The 2-finger Servo-Wave levers create quicker brake engagement without reducing pad clearance at the caliper. They also feature both adjustable reach and free-stroke, so you can dial them in to your hand size. Super clean cable routing is a given, and the radial master cylinder is compact and easy to position for superior ergonomics. And should you ever need to bleed them, Shimano's one-way system is a snap. I-Spec B brake levers are not directly compatible with I-Spec shifters and require an additional conversion kit (sold separately).
$6.00
Attach your IS Mount disc brake brackets with premium SRAM mounting bolts. These bolts are made from stainless steel for a lifetime of use and come with thread-locking compound already applied.
$19.99
Semi-Metallic replacement pads for the DH-R EVO, G-Spec DH-R, Quadiem, Slate T4, Slate G-Spec and "Select 4-Piston Tektro Brakes" - Semi-metallic compound for minimal noise with maximum power - Fits all TRP four piston calipers and Tektro four piston calipers - Color: TRP red - Sold per wheel - Replacment pad for Tektro Q10YS
$139.99
Guide Ultimate Lever Assembly
$82.99
The Shimano Ultegra BR-R8100 series caliper brakes offer a clear contact feeling while balancing rigidity, weight, and stopping power. With clearance for 28mm tires, the design is still sleek. They are available in traditional and direct mount options. - Exceptional balance of rigidity, weight and stopping power - Maximum tire size is 28C - 51mm reach
$95.00 - $97.00
Avid's Elixir 1 Hydraulic Disc Brake offers excellent power and modulation. Avid's Taperbore technology and Power Reserve Geometry deliver great control and lever feel. Increased power comes courtesy of a super-stiff, 2-piece caliper that contains larger pistons and DOT 4 fluid for better heat dissipation and resistance to brake fade. Plus, the Elixir's unique integrated reservoir provides a major weight reduction and a sleek look. It even comes complete with Avid's 160mm CleanSweep rotor.
$49.99
Excellent modulation, cooler temperatures and great wet weather brake performance. The Black Prince brings the feel of braking on alloy wheels to carbon wheels. Fits: - SRAM Road - Shimano Road - Campagnolo Potenza 2016 - Campagnolo Athena 2016 - Campagnolo Veloce 2016 - Campagnolo Centaur 2017
$29.99
High performance Kevlar, Ceramic, Brass and resin composite material. Provides excellent brake power with minimal effort at the brake lever. Performance is consistent in both wet and dry conditions and pad life is excellent. High quality springs included with every set (where applicable). Fits: Shimano - Deore BR-M575,BR-M525,BR-M515,BR-T615 - LX BR-T675 - Alivio BR-M4050 - Acera BR-M3050 - Altus BR-M375,BR-M365,BR-M315 - BR-M506 - BR-M505 - BR-MT500 - BR-M495 - BR-M486 - BR-M485 - BR-M475 - BR-M465 - BR-M447 - BR-M446 - BR-M445 - BR-M416 - BR-M415 - BR-MT400 - BR-M395 - BR-M355 TRP - Hylex - HY/RD - Spyre SLC - Spyre - Spyke - Dash Sport Tektro - Orion SL HD-M740 - Orion HD-M730,HD-M725 - Gemini SL HD-M520 / M521 - Gemini HD-M500 / M501,HD-M510 - Draco2 HD-M352 - HDC330 HD-M330 - Auriga HD-M290 / M291,HD-T530,HD-T525,HD-E530,HD-E525,HD-E520,HD-E500 - Aquila MD-M500 - Aries MD-M300 - MD-M280 - Mira MD-C400 - Volans HD-T710 - Vela HD-T290 - Dorado HD-E715 QUAD - Disc Brake
$29.99
High performance Kevlar, Ceramic, Brass and resin composite material. Provides excellent brake power with minimal effort at the brake lever. Performance is consistent in both wet and dry conditions and pad life is excellent. High quality springs included with every set (where applicable). Fits: Shimano - XTR BR-M9000,BR-M9020,BR-M987,BR-M988,BR-M985 - XT BR-M8000,BR-M785 - SLX BR-M7000,BR-M675,BR-M666 - DEORE BR-M6000,BR-M615 - ALFINE BR-S700 - BR-RS785 - BR-R785 - BR-CX75 - BR-R515 - BR-R315 FSA - K-Force DB-TX-9000 - Afterburner DB-TX-9150 REVER - MCX1 Post Mount
$169.99
The Deore XT M8100 hydraulic disc brake is designed to provide high performance braking for a variety of MTB riding styles. Includes the brake lever and disc brake caliper. - BL-M8100 features a stiffer brake lever design that provides added support for aggressive riding - Servo Wave Action technology means quicker brake engagement with shorter free stroke - The BR-M8100 2-piston brake caliper is optimized for cross country riding styles - Includes finned metal pads and hose - Brake Caliper Type: Post Mount - Hydraulic Hose Length: 1000mm (Front) / 1700mm (Rear) - Hydraulic Fluid Type: Mineral Oil - Rotor Included: No - Pad Compound: Metallic
$44.99
Hayes Pro bleed kits include dual syringes and high quality fittings for precise, repeatable bleeds. D.O.T. Brake Fluid Dual Syringe Pro Bleed Kit - Includes 4oz of high performance Hayes DOT 4 brake fluid - Quick connect fittings and dual syringes for an efficient, precise bleed - Bleed fittings for Hayes DOT 4 brakes - Reusable plastic container with locking lid Venom Mineral Oil Dual Syringe Pro Bleed Kit - Includes 2oz of high performance Hayes Venom mineral oil - Quick connect fittings and dual syringes for an efficient, precise bleed - Bleed fittings for Hayes Venom mineral oil brakes - Reusable plastic container with locking lid
$14.99
Genuine replacement parts Get back on the bike with fresh brake pads for optimal operation and safety. Replacement brake pads for Zoom brakes used on specific Trek and Fisher mountain bikes. - Replacement disc brake pads for Zoom HL-280 calipers - HL-280 Zoom calipers came stock on Trek 3500 Disc, X-Caliber, and other models
Shimano BL-RS600 Hydraulic Disc Brake Lever For Flat Handlebar. Specifications: - Application: Road, Cyclocross - Type: hydraulic Technical Information: - Lever Length: 3-finger - Adjustment Options: reach adjust (tool) - Mount: clamp (split), I-Spec II - Design: Rear Right, Front Left - Brake Lever Material: aluminium - Lever Body Material: aluminium - Connection: straight Features: - for flat mount brakes - I-Spec II compatible - recommended brake caliper: BR-RS405 - funnel bleeding - lever anodized, master cylinder painted - stainless steel clamp bolt
$15.99
Disc brake adaptors designed to mate Magura disc brakes with a variety of frame mounts and rotor sizes. - Includes hardware to mount adaptor to frame
$18.99 - $21.99
- High performance compounds recommended for all-conditions - Steel backing
$293.00 - $331.00
SRAM's S-700 Shift Lever w/Hydraulic Disc Brake delivers pro-level shifting performance, excellent ergonomics, and the power and modulation of hydraulic disc braking. Feel the ergonomics and response of SRAM’s DoubleTap shifting as you drop a gear for that grueling climb or ratchet through the 10 speeds in that frantic sprint finish. Once you give the brake lever a squeeze, all that great shifting seems like icing on the cake. You’ll instantly notice that the hydraulic disc brake requires less hand force than a traditional cable-pull brake, and provides incredible power and modulation that makes every road or cross ride better.
$37.99
- Pair of L-Type brake pads with fins, for one caliper - Ice Technologies fins & aluminum backplate cools down the brakes in use, which improves braking consistency and power and reduces brake fade, especially in long descents - Choice of compound: Resin, for improved modulation & lower noise, or Metallic, for improved durability & higher braking power in muddy conditions - Longer lasting than K-Type pads - Interchangeable with K-type finless pads - Fits all Shimano flat mount gravel & road disc calipers, including Dura Ace BR-R9170, Ultegra BR-R8070, 105 BR-R7070, GRX BR-RX810 and BR-RX400 - NOT compatible with XTR BR-M9100
$19.99
Clamps for mounting Magura disc brake levers to the bar. Does not include mounting hardware, clamp only. - Sold individually
$81.99 - $87.99
The pinnacle in mountain bike braking, SHIMANO XTR RT-MT900 disc brake rotors deliver superb stopping power for the most aggressive riding. The ICE TECHNOLOGIES FREEZA rotors dissipate heat to maintain braking performance on long downhill stretches. SHIMANO's CENTER LOCK mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design. High-performance and consistent brake performance - Stable and versatile brake performance in the most demanding conditions New ICE TECHNOLOGIES FREEZA construction for boosting heat dissipation - Surface temperature cooled by -20°C (vs RT99, 203 mm) Rotor size - 160 mm, 180 mm, 203 mm
$58.00 - $69.00
- A mountain bike specific rotor designed to improve brake performance while reducing noise and increasing heat dissipation - New brake track pattern for increased pad traction and recessed spokes with thermal dissipating paint - HS2 is more powerful, and quieter rotor with best-in-class heat management
$21.99
TRP Disc Brake Pads - Semi-Metallic, Steel Backed, For Hylex, Hylex RS, and HD-T190 Flat-Mount Calipers
$85.99
Shimano's flagship disc brake rotor. Quieter than ever, but with superb, consistent braking performance on any long, steep descents thanks to excellent heat dissipation. - The new arm shape is more robust, leading to quieter operation. - Featuring ICE TECHNOLOGIES and FREEZA; ICE TECHNOLOGIES is a proprietary fabrication technique consisting of a 3-layer aluminum and stainless-steel structure allowing for superior cooling. FREEZA are aluminum/stainless fins that support rapid heat dissipation. Combined you get longer pad life, less brake fade and substantially quieter braking. - The inner aluminum surface of the FREEZA fins is covered with heat-dissipating paint. Providing even more colling performance to reduce brake fade. - Recommended both for road or mountain bike braking systems. - Lock-ring included. - Disc Diameter: 160mm - Hub Compatibility: Center Lock - Disc Pad Type: Metal or Resin - Disc Material: Stainless steel/Aluminum - Disc Technology: Ice-Tech and Freeza - Weight: 114g
$26.99 - $38.00
To keep your Avid brakes functioning properly, check your pads for wear and replace them when necessary. Organic compound pads are softer for quieter braking and increased modulation, while metallic pads dissipate heat better and last a bit longer. Two pads, one retraction spring and a mounting bolt are included (enough for one brake) in each pad set. And, choose an aluminum backing plate if you're really counting the grams.
$55.99 - $67.99
Shimano Deore XT RT-MT800 Center Lock disc brake rotors feature an advanced heat-dissipating design. - Rotor construction uses Shimano Freeza technology to boost heat dissipation and reduce fade - Quick and easy installation with spline mount and lock ring (included) - Compatible with metal and resin pads
$264.00
Meet the new standard for hard-hitting, heavy-duty braking. We added 15% extra piston power and 30% more volume in the lever reservoir, ensuring peak performance for the full run. And with SwingLink and Lever Pivot Bearing technologies, lever feel remains smooth and progressive, no matter how hard the pull. Go deeper and grab more power. - Designed specifically for heavy-duty demands. - Pivot bearing offers crisp lever feel and a fatigue-free ride. - Metallic pads come standard for more power and longer wear.
$69.99 - $139.99
Shimano's Ultegra Brake Calipers feature lightweight, stiff, cold-forged aluminum arms and a symmetrical dual-pivot design with twin bearings for smooth, easy operation with modulation and power to spare. Pair them with Shimano's Ultegra polymer-coated brake cable and scrubbing speed feels almost effortless. Setup is fast and simple with cartridge brake pads equipped with conical washers.
$128.00 - $285.00
Security at your fingertips with a fresh look to compliment SRAM RED eTap componentry. SRAM RED brakes won’t slow you down. Until you’re ready. That’s why the SRAM RED brakeset has been created with a host of wind-cheating features to make the brake body more aerodynamic, helping you keep your speed until the moment you’‘re ready. The patented AeroLink arm reduces frontal area while improving braking performance and modulation. The brake body, with updated graphics, has been sculpted to provide a sleek aerodynamic profile to the wind. Even the smallest details, like the barrel adjuster, point away from the wind. And to finish off the package, SwissStop Flash Pro pads come standard with the brake. It’s a better brake in every way. - AeroLink arm amplifies braking power while reducing frontal area - Compatible with SRAM RED eTap components - Lighter, aero pad retainers carry SwissStop Flash Pro pads standard - Aero design extends to the shape of the indexed four-position quick release - Wider clearance for modern wheelsets
$38.99
The good friction. Speed and confidence come with better braking. Refresh or update the best brakes in the world with some new pads! Brake pads for your Dominion A4 come in 2 flavors: Sintered T100 Sintered metallic friction material provides maximum stopping power in wet and dry conditions. Semi-metallic T106 (aka free-range organic) friction material provides enhanced modulation and silent operation. Gluten-Free. Includes 2 pads, retention screw.
$23.99 - $28.00
To keep your Avid Trail brakes functioning properly, check your pads for wear and replace them when necessary. Organic compound pads are softer for quieter braking and increased modulation, while metallic pads dissipate heat better and last a bit longer. Two pads, one retraction spring and a retaining bolt are included (enough for one brake) in each pad set. And, there's an aluminum backing plate option if you're really counting the grams.
$10.00 - $72.99
- Reinforced hydraulic tubing designed for Magura mineral-oil fluid - Tubing kits are cut-to-fit with one pre-crimped 'fixed' end (90-degree on MT series and Gustav-M) and include one tubing reinforcement insert and compression ferrule/olive per kit - Sold each: (1) kit per brake - Bulk tubing is for RT series road rim brakes, HS-series rim brakes and Julie disc brakes: fittings sold separately - Choose black or white options for MT Next and MT series
$49.99
Mavic's Exalith brake pads were specifically developed according to their Exalith rim technology to ensure the most consistent and predictable braking in any weather conditions. - Use only Exalith brake pads with Exalith rims. - Available in standard and CXR-specific for Campagnolo or Shimano brakes.
$199.99
SRAM's Guide RSC (Reach, Swinglink, Contact) is packed with ride-enhancing performance that makes every new trail a trusted old friend. To create the perfect combination of braking reliability and control, SRAM uses SwingLink technology to provide more power, silky-smooth modulation, less deadband and impeccable lever-feel. Hit the trail, and let the RSC be your Guide.
$31.99
Shimano BL-R550 Road Brake Levers - Compatible with cantilevers, road calipers, and road disc brakes - Not compatilble with linear-pull brakes - Brake cable and housing set included - Brake Lever Actuation: Short Pull Super SLR - Brake Lever Use: Pair - Cable Head: Mountain
$18.25
Kool-Stop's E-Bike disc pads are produced with a ceramic barrier between the organic friction material and the steel backing plate to reduce heat transfer into the brake caliper causing brake fade. With the heavier design and quick speeds of Electric bikes, they require a compound that will hold up and provide consistent braking power. - Qty 1 = enough for 1 wheel
$260.00
Wireless shifting and the best hydraulic disc braking anywhere, plus revolutionary eTap shift logic. What more could you want? While we could have stopped there, we went further and optimized the hood shape to fit hands of all sizes for comfortable and controlled braking from any position. AXS technology means personalization is in your hands. - AXS-enabled for easy personalization - Wireless electronic eTap shift logic for intuitive shifting, easy setup, and reliability - Optimized hood shape fits a wider range of hand sizes - Textured shift paddles and hoods for control and comfort - Reach Adjust to personalize fit for more hand sizes
$26.53 - $38.00
- Attachment parts for Magura OEM and braided-stainless hydraulic disc and rim brake tubing
$12.99
Jagwire Sport Organic pads feature an all-new resin compound. Mounted on a steel backing plate, this compound gives good power and modulation, while keeping noise to a minimum. Great for riders primarily riding in dry conditions.
$315.00
The eeBrake G4 is the fourth generation of the legendary eeBrake featuring 100% CNC machined parts, a wider design optimized for 22 – 28mm rims, stiffer black arch spring, a revised one-piece center adjuster with built in resistance for easier use and ghosted laser etching that will stand the test of time – all with the same extraordinary stopping power and light weight that you’ve come to rely on from eeBrakes. REMARKABLY POWERFUL, POWERFULLY LIGHT The eeBrake is the ultimate brake from start to finish – a uniquely robust patented design developed and refined by relentless engineering, both at the computer and through real-life testing. At half the weight than that of its competitors, eeBrakes continue to set new standards by which all other high performance road brakes are judged. The same supreme upgrade for performance-oriented riders, a dramatically higher overall stiffness provides better modulation and more power. No detail has been overlooked, greater tire clearance and tool-less pad centering make installation simple. PERFECT CABLE ALIGNMENT The all-new titanium eeBrake cable adjuster pivots as the brake is applied, optimizing cable alignment during brake actuation. Also, the cable housing extends to lower tip of the cable adjustment screw eliminating added friction. That means, as the brake lever is squeezed, you get even and friction-free braking power. AERODYNAMIC Cross Cable Path aligns the brake cable over the center of the brake. This alignment provides a graceful, clean line and moves cables into the “wind shadow” of the frame, providing an aerodynamic advantage over traditional brakes with their cables and lever arms off to one side of the caliper. EASY PRECISION The tool-less adjustability provides super precision and pad motion consistency through the patented “Link” pad travel proportioning system. No annoying pad rub and constant need to re-center. No more re-adjusting the main fixing bolt after initial installation or using spring tensioning screws to align the brake pads. QUICK & SIMPLE One simple flip of the lever on the Quick Strut release opens wide enough to easily clear a 31mm tire allowing easy wheel removal. Change pads with ease using our patented system via Shimano style pads allowing for easy pad installation and removal without the use of tools. MATERIALS - CNC High Grade Aluminum, Titanium, and Stainless Steel RIM WIDTH COMPATIBILITY - 19mm to 28mm ADJUSTMENTS - Tool-free caliper centering adjustment - Wheel removal - quick release - Titanium Barrel adjuster w/ retention O-ring - T-25 Trox pad holder / cable clamp LEVERAGE COMPATIBILITY - Optimized to work with Shimano, Campagnolo, and SRAM levers LOGO BADGES - Two stage anodized engraved aluminum ee badge WEIGHT - 85.3 grams* (Front) - 83.7 grams* (Rear) * Pads not included
$32.29
• Truly universal compatibility (adjustable cable pull for linear/mech disc or caliper/cantilever) • 22.2mm (7/8") clamp • Return spring/reach adjustment • Forged aluminum construction • 2-finger lever design
$19.99
•Side pull brake •Includes lever, caliper, cable and housing •Forged aluminum construction •Includes replacement bolt for mounting on fork
$109.99
TRP’s Spyre SLC road disc brake lets you have your cake and eat it too. With an aluminum body and a feathery carbon actuation arm, these mechanical discs provide impeccable all-conditions speed control in a lightweight package you’d expect for your road or cross bike. The Spyre’s dual-piston caliper engages both brake pads for a crisp, responsive lever-feel and excellent stopping power. The dual-piston design also wears the pads evenly and makes adjustments a cinch. These brakes deliver the perfect amount of control for your needs, whether it’s long, hilly descents or frequent, lower-speed dismounts in cyclocross. Plus, their slim profile tucks in neatly for great aerodynamics and obstruction-free ‘cross remounts, so the Spyres will only slow you down when you want.
$44.00 - $54.99
Smooth, controlled braking is yours with Avid's HS1 Rotor. It utilizes cross-drilled technology to dissipate heat, save weight, and give you a consistent feel at the lever and predictable speed control in all conditions.
The Campagnolo 03 rotors were designed to ensure optimal resistance to overheating, thus guaranteeing greater braking capability even in the most critical situations. - Designed to be used with Center Lock or AFS systems - Feature a rounded UCI compliant edge for safety and easy insertion into calipers
$17.99 - $34.99
- Cartridges: forged aluminum cartridge holders with a threaded mounting post and standard-compound pad inserts (M70R2 versions include mounting hardware) - Inserts: replacements for worn Shimano cartridge pads (includes retention cotter pin) - Molded: 1 piece internal backbone pads with threaded post and hardware
$12.99
Replacement EBT screws close the bleed port on Magura brakes. - Torque spec: 0.5 nM - T25 head
Kool-Stop's sleek, lightweight cross pad with their triple compound technology is a great choice for competitive cross bike racers. Features: - Forged Alloy Holder - Triple Compound - Lightweight Design Specifications: - Overall length: 54.5 mm - Pad contact width: 7.5 mm
$57.99
Shimano's XT Ice-Tech rotors use a 3-layer sandwich of steel, aluminum and steel which reduces the temperature of the braking surface. This means quieter braking, and more importantly, less fade on long downhill sections , plus improved pad life. The various sizes give you total freedom of choice over the delicate balance of power versus weight.
$51.99
Shimano's Deore XT Ice-Tech rotors utilize the industry standard 6-bolt mounting system for secure mounting. These rotors use an aluminum core with steel outer plates to better control the temperature of the braking surface. This means quieter braking and, more importantly, less fade on long downhills and improved pad life. The various sizes give you total freedom of choice over the delicate balance of power versus weight.