Hello Jamie, if you are getting a new rear rim your best bet would be to get a Try-all with anodised sidewalls. Keep it smooth and get Plazmatic pads, becuase it is summer it will do great because they is no rain anymore (Touch wood), Also for a really grabby bitey brake add a tad bit of tar and that ill do you for the rest of summer After summer when it starts to rain agian, put a nice hars grind on your rim and get the Coustsinks or Red Heatsink pads About the booster, just get a nice two bolt one like the trialtech or the try-all Hope I have helped. Callum.