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Our custom HD springs are made to hold the power of big bore kits
Special BBR tapered aluminum intake manifold adapts the large carb to the stock intake port size
Constructed of our Proprietary Plastic Compound
spark plug
This allows a shorter gearing setup to really help get out of the idle-3
TB 114cc bore kit, Race Head, & 20mm carb kit – TRX90 All Models Merch Our custom HD springs areTB 114cc bore kit, Race Head, & 20mm carb kit TRX90 All Models TBparts 114cc big bore kit, V1 Race head, and 20mm carb for use with stock air box. Starting with the V1 cylinder heads larger 25 22mm stainless steel (21 4N) valves, better porting, larger cam, improved valve geometry and superior quality this new setup will rev quicker, farther, and make much more power than the stock setup. Add the lightweight high compression 54mm bore kit that brings
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