Park Tool Steel Bottom Bracket Tool BBT-147-12 Hanger #253 OTT (Off The Top) is

OTT (Off The Top) is an adjustable coil negative spring that allows the rider to dial in initial compliance without affecting the mid and end stroke

Offset 6mm Primary Color Gold Position Single Narrow-Wide Design X-Sync 2

8-Bit Chainbreaker + Utility knife Multi-tool: 71 g  - 146mm x 20mm x 11mm

} Black Prince: the feel of alloy braking for carbon Yellow King: Excellent wet/dry stopping power

Park Tool Steel Bottom Bracket Tool BBT-147-12 Hanger #253 OTT (Off The Top) isConstructed from precision machined 4140 steel the BBT 147 12 is a heavy duty tool for the removal and installation of select bicycle components with an 12 notch tool fitting Features an extra deep body to accommodate extra wide spindles and low profile walls at the point of engagement for recessed lockrings Fits 12 notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 5053mm and a minor diameter (inside of notches)