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Overview The 1/Fifty is a wide, deep profile, full carbon aero rim that successfully blends crosswind stability, stiffness and handling while delivering superior heat dissipation and braking performance by utilizing the same ultra high TG resin and brake pads as the TwentyFour series wheels. The semi-automated carbon lay-up, rim construction and raw materials proven through the TwentyFour series wheels are exemplified in the 1/Fifty rims. By utilizing components optimized for more efficient production, we are able to deliver a performance wheelset at an aggressive price. Brake Performance Specifically formulated to withstand the same heat our rims can take on, our brake pad compound is exclusive for GMR wheelsets. Using a specially formulated rubber compound, durometer and friction agent, we developed a proprietary brake pad and reduced braking distances over that of other carbon fiber wheelsets. Specifications CFD and wind tunnel developed proprietary carbon fiber 50mm low profile clincher rim. Full Carbon Clincher Rim High TG resin. Proprietary precision machined alloy hubs. Sealed cartridge bearings. Hand-built assembly. 11/10S Shimano compatible. along rim bed for center base tape. Tech Specs Front Wheel Weight: 730g Size: Â700c Hub: Â6061-T6 Alloy Bearing Size:  6900 Hub Compatibility: ÂQR Rim Depth:50mm  Rim Width (Outside):24.5mm  Rim Width (Inside): Â17mm Color: UD Carbon Spokes:Sapim® Race Spoke Shape: ÂStraight Pull Spoke Count:20  Spoke Pattern:Radial  Spoke Length:259mm Nipples: Â7075 Alloy Polyax Double Square External Nipples:Yes  Max Tire Pressure:125psi /  8.27 bar Tire Width:25-28c  Rear Wheel Weight:884g  Size: Â700c Hub: Â6061-T6 Alloy Bearing Size:  6802 Hub Compatibility: ÂShimano/SRAM: 9/10sp, 11sp w/included spacer Rim Depth:50mm  Rim Width (Outside):24.5mm  Rim Width (Inside): Â17mm Color: UD Carbon Spokes:ÂSapim® Race Spoke Shape: ÂStraight Pull Spoke Count:24  Spoke Pattern Non-Drive:Radial  Spoke Pattern Drive:2 cross  Spoke Length Non Drive:263mm Spoke Length Drive:268mm  Nipples: Â7075 Alloy Polyax Double Square External Nipples:Yes  11-Speed Compatible Hub:ÂYes 12-Speed XDR Compatible Hub:Yes w/ ( Aftermarket XDR Freehub purchase) Max Tire Pressure:Â125psi / 8.27 bar Tire Width:25-28c  Wheelset Set Weight:1614g  Max Recommended Rider Weight (lbs): Â220lbs What's Included 10spd cassette space. Profile Design rim tape. Profile Design quick-release skewers. Profile Design Carbon-Specific P220 TwentyFour Series brake pads. Manual 1/Fifty Clincher Wheelset Installation Instructions