Problem Solvers Bushnell Eccentric Lightweight Bottom Bracket - 68mm x 54mm Black. The 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.D.
QUALITY SERVICE
Just real riders who strive to provide the best customer service.
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Most orders over $75 ship free anywhere within the lower 48 United States
RETURNS
Not happy with your order, just send it back to us for a refund or exchange.
Our Race Team Sponsors
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Our Race Team Sponsors
Also Supported By
Race Team
Racing is a huge part of the culture at Lenny’s Bike Shop, and the Lenny’s Race Team represents the shop on trails and racecourses throughout the region. Made up of passionate riders who love pushing their limits, the team competes in gravity and mountain bike events while proudly representing the Lenny’s community.
Why Shop with Lenny's?
At Lenny’s Bike Shop, cycling isn’t just a business — it’s a passion. As a locally owned, full-service bike shop, Lenny’s is dedicated to helping riders of every level enjoy the sport with the right bikes, gear, and expert support.
From high-quality bicycles and components to trusted service and advice, the team focuses on delivering products and support that help you ride more and ride better.
Whether you’re upgrading your bike, tuning up your ride, or just getting started, you’ll find knowledgeable staff, great brands, and a commitment to keeping the cycling community rolling.