Nitro,

I also have the HPI Racing clutch 13.99.

I knew I forgpt something!!

Thanks HPI_MT2 - I just wish Tower had them in.

Szyslak096 - I think your tires lock nuts are weakening and the hex hubs are rounding out - Get Tamiya Lock Nuts - they are much better. Bigger pinion(clutch bell) - More speed less torque Smaller pinion - more torque less top end. Think of a ten speed bike. The MT2 comes with a 12 tooth - I was think ing of going to a 13 - when I had the smaller engine to get out of the corners better - but I just got the bigger engine. Problem fixed.