Problem Solvers Bushnell Eccentric Lightweight Bottom Bracket - 68mm x 54mm Silver CheckoutTitle=RockShox Vivid Ultimate RC2T Rear Shock - 230 x 57.5 mm 5/584 Tubeless Technology Tubeless Easy

5/584 Tubeless Technology Tubeless Easy Labeled Size 27

Center Lock 35mm splined disc rotor mount

Color Organic Green Defined Color Green Housing Diameter 5

Standard Surly New hubs come stock with 7901 bearings

Any frame that uses an external cup headset with a 34mm upper head tube inner diameter and 34mm

Problem Solvers Bushnell Eccentric Lightweight Bottom Bracket - 68mm x 54mm Silver CheckoutTitle=RockShox Vivid Ultimate RC2T Rear Shock - 230 x 57.5 mm 5/584 Tubeless Technology Tubeless EasyThe Problem Solvers Bushnell Eccentric Bottom Bracket is the industry leading design for chain tension adjustment on tandem and dedicated single speed bikes equipped with eccentric bottom bracket shells. The lightweight version features additional machining and drilling of the alloy body to reduce weight. Accepts English threaded bottom bracket cups (1. 37 X 24 tpi) Lightweight cut out body design made from aluminum Fits BB shells from 53. 8 54mm I.