Race Face Era Crank Arms No BB 136 BB 170mm Stealth 4X-Stretch } Double air spring system

} Double air spring system with independent positive and negative chambers

} Lightweight silicone grips conform to your hand for maximum grip and shock absorption to reduce hand fatigue and arm pump

4L) dimensions 25x10x25cm weight 197g color black/pink

Step 1: Remove derailleur and axle from bike

MWC 2026 Official Website

Race Face Era Crank Arms No BB 136 BB 170mm Stealth 4X-Stretch } Double air spring systemReimagined carbon crank is 300% stronger than Next R cranks Patent pending insert redesign means loose inserts are a thing of the past Steel wear plate improves durability Versatile Cinch system offers interchangeable spiders, limitless ring combinations, swappable width 30mm alloy spindles, and full compatibility across all relevant frame standards 136mm wide spindle: 52mm chainline on bikes with Boost 148mm rear spacing (optional: use Shimano 12sp