I have found that the WERKS POWER Clutch is worth the investment for my Xray XB8. I run four carbon shoes with the lightest (I think its the gold one from memory) of the three springs that they provide. I only race at club meets etc (no bashing my racing machine!!) and I have found that with a little patience (and my new one piece engine mount that allows me to set the gear mesh once and for all) this clutch is very reliable given the 'one big spring' design as opposed to relying on three. Installation is soooooo much easier than standard three piece clutches. To make things better again I have just ordered a new adjustment nut that will allow me to adjust the clutch through a small hole in my clutch bell without taking the engine out at all! I have heard and read that the the RMV and Fioroni examples are excellent- but the WERKS is quite a bit cheaper. The RMV is 35 bucks more- thats the equivalent of two full sets of spare shoes for my WERKS clutch. I am about to experiment with running two Carbon Shoes and two rulon shoes....

In conclusion I choose to invest in the clutch for $70 odd dollars (US) as I really wanted an XB8 but I had heard that their clutch/fywheel set up left a little to be desired. As I understand it they have resolved this issue on the new XB8TQ that has been launched in the last few days.

If you are going to spend money on a clutch as a replacement or hop up for racing I would recommend the WERKS clutch for sure: heres a link for the clutch kit:

http://www.amainhobbies.com/product_...oducts_id/2263

and one for the new adjustment nut which would be a must have given the relatively small price IMO

http://www.amainhobbies.com/product_...oducts_id/2433

Take it easy

Jimmy