3 Shoe Clutch Kit 

To suit 1/8 scale models made by Hi Speed, will fit a few other models using a .21 engine (not all). To help ensure a fit please check measurements below:

14T Clutch Housing - 20.4mm wide - outer diameter 28.1mm

2 x Ball Bearings included 10mm x 5mm x 4mm (ODxIDxW)

Lightweight alloy flywheel: Outer diameter 34.40mm - Center hole dia 8.6mm

Axle - to fit 6mm crankshaft thread - 11.1mm long (entire length)

What to check to ensure a fit?

Check the crankshaft thread measures 6mm and that the crankshaft length will manage the axle flywheel, so a length of 14.57mm minimum to 20.57mm maximum along the threaded section. After the threaded section their must be a smooth section following for the 10x5x4 bearings to fit, this must be 5mm in diameter. No screws or washers are included with this set. The type of crank required is a SG crank. Short cranks such as featured on some .21 SH engines will not be suitable.

What engines will fit these fit?

.21 engines from the following makes have been checked to fit already:

SH .28 (SG crank must be used) / VX / Ansmann / Team Infinity

In general if it has a SG crank 9/10 it will fit, however please check the above measurements first to avoid any fitting issues.