Park Tool Left Hand Threaded T47 Guide For Bfs-1 fitness 100% UVA and UVB protection

100% UVA and UVB protection comes at a great value in these optical grade polycarbonate lenses

offering the perfect match between comfort and technical protection

Lightweight with breathable mesh lining and self-cleaning ribbed outsole makes this boot a must-have

The Pads are made with a breathable mesh and moisture management lining so your sweaty knees

Park Tool Left Hand Threaded T47 Guide For Bfs-1 fitness 100% UVA and UVB protectionInformation: The 648L is a T47 (47mm x 1. 0) left hand threaded standard guide for use when facing bottom bracket shells with the BFS 1 Bottom Bracket Facing Set and 690 XL Oversized Facer. This guide is used on the drive side (right side) of the bike. This side of the bike drive uses a counter clockwise or left hand threading.