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Big Bore Kits There are 35 products.
Big Bore kits for all makes of the Honda 50, xr, crf, z, z50, xr50, and crf50. Also manual clutch kits, high...More
Big Bore kits for all makes of the Honda 50, xr, crf, z, z50, xr50, and crf50. Also manual clutch kits, high volume oil pumps, and everything else needed to make your 50 faster!
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Available88cc stage 1 big bore kit for honda for xr...
Stage 1 88cc Big Bore kit for Honda xr and crf 70's. Fits all years - Lightweight aluminum cylinder with steel sleeve- Cast in mounts on cylinder for aftermarket skid plates- Oversized cooling fins on cylinder for efficient heat dissipation- High compression 52mm piston with rings, pin, & clips (can still run... -
Available88cc stage 2 big bore kit for honda xr70...
Stage 2 88cc Big Bore kit for Honda xr70 and crf70 all years - 20mm Carburetor kit - Performance camshaft- Lightweight aluminum cylinder with steel sleeve- Cast in mounts on cylinder for aftermarket skid plates- Oversized cooling fins on cylinder for efficient heat dissipation- High compression 52mm piston with... -
AvailableHonda 50/70 High Performance Carburetor...
High Performance 20mm Carburetor and Intake Kit for 50cc/70cc Honda 50/70. This carb should be used on big bore engines, 88cc-125cc. -
Available117cc stroker kit 6 for honda 50's...
This kit is the complete kit to convert your stock motor into a powerful open class 117cc engine! -
Available117cc stroker kit 5 for honda 50's...
This kit is the same as the Stroker Kit 4 but also includes a 26mm carburetor for much better performance. This is an affordable kit that will convert your 88cc Race Head kit into a powerful open class 117cc engine. (Much more powerful than the common Chinese 107 and 125cc engines) with tons of torque! -
AvailableHonda TRX XR400R 440cc Big Bore Kit
440cc Big Bore Kit with 89mm Piston for Honda XR400R / TRX400EX 1996- 2016 Bolt on 89mm 440cc Big Bore Kit for all Honda TRX400ex and XR400 models. This is a complete kit, with everything you need to rebuild your top end. -
AvailableRear Brake Caliper for Honda Sportrax
Brand new with 1 Year Warranty, 50 Caliber Racing single piston Rear Brake Caliper assembly for your Honda ATV. Includes billet parking brake block off plate which is removeable in order to maintain the use of your existing parking brake. Comes with new Pads plus assembly hardware shown, however the bracket is not... -
AvailableFront Brake Caliper Yamaha Rhino 450 660
Brand new with 1 Year Warranty, 50 Caliber Racing Front Brake Caliper assembly for the Yamaha Rhino 450/660 UTV. Select to purchase Left, Right or both as a pair to replace the factory Brake Caliper for your Rhino. They come fully assembled including Pads with mounting bracket as a complete and direct replacement... -
AvailableRear Brake Caliper Yamaha Rhino 700
Brand new with 1 Year Warranty, 50 Caliber Racing Rear Brake Caliper assembly for the Yamaha Rhino YXR 700. Select to purchase Left, Right or both as a pair to replace the factory Rear Brake Caliper for your Rhino. They come fully assembled including Pads with mounting bracket as a complete and direct replacement... -
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AvailableHonda CT70 ATC70 Standard Bore 47mm Piston...
50 Caliber Racing 47mm Standard Bore Piston Kit for Honda C70 CT70 CL70 SL70 XL70 ATC70 vintage pit bikes. Complete assembly including 47mm piston, wrist pin, rings and circlips. Replaces oem Honda part number 13101-087-000.
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