Position One Disc Brake Kit Product Overview The Position One Radius is a hydraulic disc brake system engineered for BMX racing. Featuring a 2-piston metal caliper with adjustable 2-finger lever, it delivers responsive braking power optimized for BMX requirements. Pre-bled and ready to use, it's compatible with 120mm and 140mm rotors and available in three hose lengths. Key Features Enhanced Braking Power – Hydraulic system delivers stopping power optimized for BMX racing demands 2-Piston Metal Caliper – Dual-piston design provides responsive, reliable braking performance Quick Stopping Power – Immediate brake response ideal for racing gate starts and technical riding Adjustable Brake Lever – 2-finger lever reach manually adjustable for comfortable operation across hand sizes Wide Lever Reach Range – Perfect for both large and small hands; personalized comfort and control Hinged Clamp Design – Installs without removing handlebar grips; simplified installation Metal Brake Pads – Durable metallic compound provides reliable braking and extended pad life Dual Rotor Compatibility – Works with both 120mm and 140mm disc rotors Two Way Bleeding – Easy maintenance and air removal from brake system Pre-Bled System – Lever and caliper arrive pre-bled and ready for immediate use Multiple Hose Length Options – Available in 1300mm, 1400mm, or 1450mm for frame size and routing flexibility Mineral Oil Hydraulic Fluid – Standard BMX brake fluid compatible with common brake systems Professional Racing Component – Purpose-built for competitive BMX racing applications Technical Specifications Brake type: Hydraulic disc brake system Caliper: 2-piston metal design Lever: 2-finger with adjustable reach Mount type: Post mount Rotor compatibility: 120mm and 140mm Hose lengths: 1300mm, 1400mm, or 1450mm Hose type: SM-BH59-SS (Shimano and Elevn compatible) Pad compatibility: B01S resin pads (Shimano and Elevn compatible) Fluid: Mineral oil Piston material: Metal Pad material: Metal compound Installation: Hinged clamp (no grip removal required) Pre-bled: Yes, ready for immediate use Compatibility & Ideal Use Cases Post-Mount Disc Brake Frames – Compatible with frames featuring post-mount caliper bosses 120mm Rotor Wheels – Works with standard 120mm centerlock or ISO disc rotors 140mm Rotor Wheels – Compatible with larger 140mm rotors for increased braking power BMX Racing – Engineered specifically for competitive BMX racing applications Adjustable Reach – Suitable for riders with varying hand sizes and reach requirements Shimano Rotor/Pad Systems – Compatible with Shimano B01S resin pads and SM-BH59-SS hoses Elevn Component Integration – Works with Elevn brake components for modular systems Multiple Frame Sizes – Three hose length options accommodate different frame geometries Professional Racing – Purpose-built for serious BMX racing applications Build Requirements & Compatibility Post-Mount Caliper Boss – Frame must have post-mount disc brake caliper mounting boss Rotor Selection – Choose 120mm or 140mm rotor based on your wheel and desired braking power Hose Length Selection – Select from 1300mm, 1400mm, or 1450mm based on your frame geometry Handlebar Compatibility – Verify handlebar diameter accommodates lever clamp (standard 22.2mm) Wheel Rotor Mount – Verify your wheel has centerlock or ISO rotor mounting compatible with your rotor Brake Pad Replacement – B01S resin pads (Shimano and Elevn compatible) for pad maintenance Important Notes Pre-bled and ready to use; no initial bleeding required Hinged clamp design simplifies installation without removing grips Adjustable lever reach accommodates wide range of hand sizes Metal pads provide durable braking performance Two-way bleeding system simplifies maintenance and air removal Mineral oil hydraulic fluid compatible with standard BMX brake systems Hose length critical for proper routing; select based on frame geometry Post-mount caliper installation requires proper alignment and torque specification Metal pads may produce more brake noise than resin compounds Pad compatibility: B01S resin (Shimano and Elevn); verify pad type for replacements Hose compatibility: SM-BH59-SS standard for Shimano and Elevn systems Professional-grade hydraulic system suitable for competitive racing Regular maintenance recommended: inspect pads, check fluid level, bleed if needed Mineral oil is hygroscopic; avoid contamination during maintenance **Due to unique nature of this item, ALL sales of this product are FINAL. No Refunds or Returns**
