Upgrade you stock bottom bracket. Enduro bottom brackets are designed to spin more efficiently and for longer. The entry standard for Enduro bearings. Enduro’s ABEC 3 bearings offer improved quality and performance over ABEC 1 bearings fitted by many OE manufacturers. Only the finest cycling components come standard with Enduro’s ABEC 3 bearings. With hardened chromium steel races, balls, and tough riveted steel retainers, these bearings are durable and the perfect low cost performance upgrade.

• Fits BB90 frames – 37mm diameter with a shell width 90.5mm (road) or 95.5mm (mountain)
• Suitable for chainsets with 24mm axle
• Lightweight, durable Delrin cups
• Durable 2437 LLU ABEC 3 Bearings
• 49.82g