Bottom Bracket ISIS

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The Jitsie ISIS bottom bracket is built for trials riders who demand durability, smooth rotation, and strength under abuse. Featuring a chromoly steel spindle and sealed cartridge bearings, it delivers reliable performance in all conditions. The alloy cups and body reduce weight while retaining rigidity, and the 1.37″×24 TPI thread makes it compatible with most trials frames. Supplied with steel bolts, this bottom bracket is a go-to upgrade or replacement for competitive riders. sealed cartridge bearings for longevity and smooth rotation alloy cups and body to reduce weight without sacrificing stiffness standard 1.37″ × 24 TPI threading (Euro / BSA style) — fits most trials frames 128mm bottom bracket uses a chromoly steel M12 spindle, fits both 68mm and 73mm wide bottom bracket shells and is supplied with steel M12 bolts for secure installation plus a 2.5mm spacer to use with a 68mm wide bottom bracket shell Show more