Park Tool 688 Right Hand Threaded Italian Bushing bikebox uphill sprints) or the use

uphill sprints) or the use of oval chainrings

10T lowest sprocket realised by new FREEHUB body construction

A new rim laminate saves 40g per rim

Pad Shape: Narrow

Nickel-plated finish offers hard-wearing resistance to corrosion

Park Tool 688 Right Hand Threaded Italian Bushing bikebox uphill sprints) or the useThe 688 is a 36 mm x 24 TPI right hand threaded standard guide for use when facing bottom bracket shells with the BTS 1 Bottom Bracket Tapping and Facing Set or BFS 1 Bottom Bracket Facing Set. This guide is used on each side of the bike during facing. Features 36 mm x 24 TPI right hand threading Sized for the Italian bottom bracket thread standard Sold individually two required for use Mfr Claimed Weight TBC