Originally posted by cornerspeed
With out going back a couple of pages through this post can someone tell me what is necessary for my GRP V 1 R to run wide rear tires. Also were to get the stuff and latest hop ups. What's up with SP belts.
Well it all depends on WHICH tires you are running. Yokomo 30mm rears fit the V1R with no modifications. Ellegi/BEST/FAST/GRP 30mm fit on the rear OK if you file a little away from the rear camber link. Apparently the ZAC 32mm do not fit unless you use the wider (by 1.5mm) rear axles.
There is basically two ways to get wider tires. Firstly you can use 0 offset tires which moves the inside rim inwards about 4mm. If you do this you may have clearance problems. Of alternatively you can use 3-4mm offset rims which moves the outside of the rim outwards 4mm (assuming you do not alter the track). The longer axles are to allow you to space the hex carrier further outwards to create a little more clearance on the rear camber linkage.
I have no idea where to get hopups in the US. www.radiomodels.com.au
carries the full range of KFactory hopups.
The SP belts are basically reinforced rubber belts. The standard belts are a "urethane" or plastic toothed part with reinforcing sandwiched between another layer of urethane. The SP belts seem (I am not 100% sure) to have the top layer of urethane, the reinforcing, but the toothed part is made of rubber which is softer and therefore has less friction.