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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
SpeedDialFit™ System
Giro Fathom Helmet
Wide pad clearance and chamfer of brake pads
The eight cogs in the middle are machined from a single block of high grade tool steel
Q-factor (mm) 150
Troy Lee Designs A3 MIPS MTB Helmet - Uno Cyan Blue YGroup_eastern-alpaka-27-5-mtb-bike-YG SpeedDialFit™ SystemTroy Lee Designs A3 MIPS Helmet Uno Cyan Blue So comfortable you won't ever want to take it off. The A3 mountain bike helmet is a new standard in premium mountain bike helmets with luxurious comfort, patent pending innovations in safety, ventilation that will you keep you cool on the longest climbs with comfort and coverage to protect on the sketchiest of descents. Highest possible score (5 STAR) from Virginia Tech helmet safety lab so you can feel
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