The Super Booster rear hub spacer kit is designed to give your 148mm rear thru-axle hubs the extra boost they need to fit any 157mm frame., Super
Boost Disk Word (148mm) – Paul Component Engineering
Other - Edison Cycle Co Poway, San Diego, & Ramona, CA
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Hadley XDR/XD Driver 157mm X 12mm Super Boost Thru-Axle Rear Hub - Reviews, Comparisons, Specs - Rear Hubs - Vital MTB
VeloSolo UK BOOST HUB ADAPTER Conversion Spacer KIT 100mm 110mm 142mm 148mm Axle
Parts - BIKEALOT
Boostinator
We're Being Slowly Boiled Into Super Boost