PROGRESS A-Prime Disc LTD road rear wheel

Features: - Extremely durable hand built wheel. High durability and high precision. - Graphene is the world’s strongest and lightest material which offers a totally revolutionary rim technology. Graphene-enhanced full carbon rims are 50g lighter and 20% stiffer. - PROGRESS cassettes bodies can be easily removed and replaced with no extra adjustments. Switch quickly between Shimano, Campagnolo, or SRAM cassettes. - These wheels are one of the fastest with best aerodynamic performance you can find. Check AIRBUS Wind Tunnel test in progress technology. - Progress cassette body option SRAM XD-R compatible made of CNC aluminum. Reinforced with 3 bearings to resist high loads. - TLR Tubeless Ready We’re using most common rim bed design. Its advantage are excellent rolling resistance, fewer punctures and easy mounting tire. - Rear hub with a very strong three pawl ratchet mechanism. Engagement with 3 oversize pawls and steel ratchet with 24 teeth’s. - A hub with Parallel Drilling technology ensures high precision 100% aligned bearing seats. Progress hubs and bearings are designed for light weight, long lasting and best running performance. - As much as possible weight reduced. Not recommendable for riders whose weight is over 90 Kg. Lightweight wheels provide much better acceleration and climb. - SAPIM CX aero spoke is the choice of champions and many teams at the Pro-Tour. Made in Belgium with an aerodynamic advantage and unbelievably high fatigue test results. We build them into our lighter wheels to achieve durable and long lasting wheels which don’t need to be re-trued. Each Progress Wheel, hub and rim is designed with perfect spoke angle to release extra stress. - High precision CERAMIC bearings with maximum precision and low friction that increase durability. - AIR+PLUS High speed technology with optimized aerodynamic efficiency and less drag. Lateral wind is no longer a problem anymore thanks to the new 28mm wide U-shaped carbon rim. This design allows the use of wider tires without negatively influence on the wind flow, more tire volume, lower rolling resistance and better handling in crosswinds condition. The AIR+PLUS is successfully worldwide race proven and wind tunnel tested. (Check AIRBUS GST results) - Crashed wheels! In case of bad luck, Progress supports you by offering replacement rims for half the regular price during 1 year after purchase. - New Oversize hub body CNC made of AL7075 super lightweight. 3 cross straight pull for a 20% stiffer wheel and better aerodynamic performance. Super precis Japanese cartridge bearings with very low friction and bigger size for long lasting. 15mm CNC made Aluminium rear axle and free hub. Classical engagement with 3 oversize pawls and steel ratchet. New SRAM XD free hub with 3 bearings and Shimano with 2 bigger bearings, free hub Shimano and SRAM interchangeable without any modifications or adjustment. Road Nitro rear with 2:1 spoke lacing. Specifications: Rims: - Available for Tubeless Ready - Graphene 12K multilayer carbon fiber. - Super lightweight disc brake design. - Air+Plus High Speed Technology. - Under clear coat transfer graphics. - ERD: 545mm Profile: - Profile: 50mm - External width: 28mm - Internal width: 21mm - Hubs: Nitro Disc Ceramic Center lock Spokes: - SAPIM Aero CXRAY 24 Straight pull. - Hand Built with alloy nipples and secure lock. - Quick release/axles: 12x100 / 12x142 - Weight: Set Tubeless: 1.440 gr Limits: - Recomended rider weight limit: 110 kgs - Recomended tyre sizes: 23mm to 32mm Options: - Shimano HG cassette body compatible - Campagnolo cassette body 10/11S compatible - Sram XDR cassette body 10/11S compatible Technology: AIR+PLUS High speed technology: - When you race 40km/h your wheels are spinning double 80km/h, hard cross winds are capable to throw you from the road. - With our wheels lateral wind is no longer a problem anymore thanks to the extra wide and latest U-shaped design. - This design allows the use of wider tires without negatively influence on the wind flow, more tire volume, lower rolling resistance and better handling in crosswinds condition. 23 to 28mm tires are seating totally integrated into the rim shape and do not offer extra friction. - This shape has high aerodynamic efficiency in accordance to latest scientific findings from wind tunnel testing’s. - Comparing to regular V-Shape rims we reduced drag and crosswind drag coefficient by more than 30%. Pal-Tech: - High precision aligned bearing seats with parallel drilling technology made by high-tech CNC 5-axis machine. - 100% parallel to the axis of the spindle. - Less friction more speed and longer bearing life. PSG (Perfect Spoke geometry): - Every Progress Wheel is designed for his specific operation purpose. Our choice of rim, hubs, spokes and lacing pattern isn’t just a coincidence. - We strengthen rims at every spoke hole on each rim we develop. The spoke hole and nipple seat is perfectly aligned with hub and spoke angle. - This creates a perfect spoke geometry which allows us to use high spoke tension by an evenly and equal tension distribution. Releasing excessive stress from spokes we get long-lasting and high performance on every wheel. Tire Width Recommendation: - For maximum aerodynamic efficiency on your wheels we recommend that the width of the tire does not exceed the outer width of the rim. Our AIR + PLUS rims are very wide with 27 to 30mm, opening the tire enough so that the tire and rim walls form a seamless line.