Box Two Alloy External Bottom Bracket

J&R Bicycles, Inc. Verified independent store

→

The Box Two Alloy External Bottom Bracket is a great upgrade for your bottom bracket and will work with all 24mm spindles and frames with 68 or 73 x BC 1.37-inch bottom bracket she lls. Featuring machines alloy cups and precision sealed bearings. FEATURES Forged CNC-Machined Alloy Cups High-Impact Anodizing 24mm Outboard Bearings ABS Plastic Sleeve Precision Abec-5 Sealed Bearings SPECIFICATION COMPATIBILITY: Box Three™, Box Four™, Shimano® HollowTech II, RaceFace® X-Type MATERIAL: 6061-T6 Aluminum SHELL WIDTH: 68mm/73mm SPINDLE TYPE: 24mm THREAD: 1.37 Inch x 24 TPI WEIGHT: 105 grams / 3.7 ounces Show more