Park Tool Steel Bottom Bracket Tool BBT-135-12 CheckoutSpec= Charger Damper (with turned indicator mark) A:Wall - A butyl layer

A:Wall - A butyl layer within the casing ply provides the ultimate sidewall protection

Made in the USA Model Dropout 250

46 BB/Frame Interface PF30 BB Shell Width (mm) 73 Weight 153 Spindle Interface Type SRAM/Truvativ GXP Defined Color Black

4 bar design with straight gauge tubing

120tpi casing with Aramid puncture protection - TechBELT EVO compound Slightly thicker tread base

Park Tool Steel Bottom Bracket Tool BBT-135-12 CheckoutSpec= Charger Damper (with turned indicator mark) A:Wall - A butyl layerConstructed from precision machined 4140 steel the BBT 135 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 4850mm and a minor diameter (inside of notches)