The SD-X Sniper Evo Air Rear Hub is designed for lightweight racers seeking maximum efficiency and instant power transfer. This full-engagement rear hub combines lightweight aluminum construction with SKF ABEC-5 bearings, delivering top-level performance for competitive BMX racing. Thanks to its advanced direct engagement system, the hub responds instantly to every pedal stroke, minimizing delay and delivering explosive starts. The system operates completely silently and produces no drag while freewheeling. The hub is supplied as a 10mm version with titanium bolts and can be converted to a 15mm thru-axle Air hub using the optional Evo Rear Hub Conversion Kit. Customize your hub with interchangeable components available in an extensive color range. Features: - Supplied as standard in 10mm configuration with titanium bolts - Convertible to 15mm thru-axle using a conversion kit - ISO-6 disc mount - Available in 28-hole and 36-hole versions - Suitable for racers up to 55kg - High-quality SKF ABEC-5 bearings - Hub shell and internals made from premium 7075 aluminum - Alloy driver - Available in a wide color range - Hub supplied without EVO cog (must be ordered separately) Technical Specifications: - Weight (28-hole): 372g - Weight (36-hole): 371g - Wheel bearings: 2×6903 - Clutch bearing: 1×Sniper Air - Driver outer bearing: 6806 - Driver inner bearing: 6705 - Titanium bolts: 2×UNC 3/8-16 Colour: Red, Pink, Lime, Orange, Black, Purple, Blue; Size: 28H, 36H