Problem Solvers BUSHNELL ECCENTRIC BOTTOM BRACKET Manuals

6400 West 105th Street / Bloomington, MN 55438 / www.problemsolversbike.com 499039 12/19 | 85-001053_INST_B BUSHNELL™ ECCENTRIC BOTTOM BRACKET INSTRUCTIONS THANKS FOR PURCHASING A PROBLEM SOLVERS BUSHNELL™ ECCENTRIC BOTTOM BRACKET! This is the classic, venerable Bushnell™ Eccentric that’s enabled proper chain tension on tandems and oddball singlespeed rigs since the ’90s. You’re in good company. (U.S. Patent No. 8,070,633) WARNING: Cycling can be dangerous. Bicycle products should be installed and serviced by a professional mechanic. Never modify your bicycle or accessories. Read and follow all product instructions and warnings including information on the manufacturer’s website. Inspect your bicycle before every ride. Always wear a helmet. WARNING: Read these instructions completely before beginning installation of this product. If you lack the knowledge or tools to perform installation, please have your local professional bicycle mechanic perform the installation. Improper installation can result in loss of control or damage to the bicycle and/or serious injury. For additional technical and safety information, visit: www.problemsolversbike.com/safety COMPATIBILITY AND INTENDED USE The Eccentric Bottom Bracket is compatible with frames equipped with bottom bracket shells measuring 53–54.5mm in diameter and accepts standard English threaded bottom bracket cups. The Eccentric Bottom Bracket (EBB) may be used on bicycles designed for ASTM use condition 3. This is a set of conditions for operation of a bicycle that includes Condition 1 (paved surfaces) and Condition 2 (gravel and unpaved roads and trails) as well as rough trails, rough unpaved roads, and rough terrain and unimproved trails that require technical skills. Jumps and drops are intended to be less than 61cm (24"). TOOLS REQUIRED Awl Grease 6mm hex wrench Torque wrench w/ 4mm hex bit INSTALLATION INSTRUCTIONS 1. Prep the EBB and frame. After cleaning the frame, perform a thorough visual inspection of the frame and bottom bracket area. Check for cracking or other signs of fatigue or damage. If any frame part shows signs of damage or fatigue, consult your local bicycle retailer or replace the frame before riding the bicycle. WARNING: Riding a cracked or damaged frame may result in an accident and serious injury. Never ride a cracked or damaged frame. a. Remove the EBB retaining rings using an awl or similar tool (fig. 1) to disassemble the EBB. b. Clean and liberally grease all the contact surfaces: the outside of the wedge nuts, wedge bolt threads, the inside of the wings, and the inside of the frame’s bottom bracket shell (figs. 2, 3). Figure 1 Figure 2 Figure 3 B C D A B E F Item Description Qty. A Threaded EBB Shell 1 B Wings 2 C Wedge Bolt 1 D Wedge Nut - LH Thread 1 E Wedge Nut - RH Thread 1 F Retaining Rings 2