O.S.Speed 2C604120 - R21 Low Nitro Combustion Chamber
Innerhead For R21 1/8 On-Road engines with 16% Nitro.Recommended shimming on the R2105 engine for 1/8 on-road:
- Use a 0.15mm shim
Compatible with:
- R2101
- R2102
- R2103
- R2104
- R2105
- R21(BLUE HEAD)
- R21 EURO, R21 EUROII
- R21 SHIMO, R21 SHIMO II
- R21-M05 Marine Engine