![]() ![]() Thumpstar is back, fitted with a 170cc Detroit engine. The ultimate brand from back in the day is once again on point doing what it does best! Loud isn’t the word, if you are looking to stand out, the Dirty S smashes it. Everywhere you look the Thumpstar Dirty S is dripping with attention to detail & quality. Light weight brake rotors, HSK racing callipers, forged brake & clutch levers, brake snake, rear rim lock, forged triple clamps, motocross kick start etc etc. This bike has been designed to mean business straight out of the crate and all for a very low price, as the Dirty S is only available online & direct from WPB. SPECIFICATIONS TTR style plastics Stomp Detroit 170 roller rocker high performance race engine with Mikuni 26mm carb N1234 gear box style kickstart Chromolly double tubed cradle frame with powder coated finish Anodised black swing arm 17/14 SDG wheels with black hubs and black rims Rear rim lock Thumpstar 17/14 MX tyres USD front forks anodised gold with chromed stanchions Forged alloy yokes with Thumpstar logo 290mm racing rear shock with 800lbs spring Stainless steel big bore exhaust with polished race muffler MX kick start Black anodised alloy gear shifter Braided brake hoses with big 1 pot race calipers Forged alloy brake and clutch levers KMC 420 gold chain Reinforced poly-resin tank with black CNC alloy filler cap High impact polymer plastics with Dirty S 3m quality graphics Thumpstar race foot pegs Brake snake 6061 alloy bars with powder coated finish Thick foam bar pad with Dirty S cover Pro Taper style grips Two tone gripper seat with logo |