WARNING!!! All ATVs, 3 or 4-wheeled, can be dangerous if used improperly or without proper instruction. All riders pictured on the website are expert or professional riders. Do not attempt anything beyond your own abilities. Please ride with all the appropriate safety riding gear. Respect the environment wherever you ride.

The TPC BBR is the perfect chassis for the 250R engine with Big Bore Cylinders. For years the Honda 250R engine has had a variety of options when it comes to big bore cylinders. The problem has always been that while some fit inside the old ATC frame, many others did not as they were built more for the TRX Frame. Additionally, the old ATC chassis was not well suited to handle all the extra power these big cylinders could produce. From the small conventional forks to the old school backbone frame that flexed to much and often cracked, and just the general small size, the ATC chassis showed it's limitations. TPC has the answer to these problems. Based off the legendary TPC 450R chassis, with it's twin spar frame, massive inverted forks and proven geometry, the TPC BBR can handle all the two stroke power you dare to put in it. All is a chassis that is built right can be lighter than the old ATC 250R. Unlike the TPC 450R, the TPC BBR represents the next evolution in TPC. Along with the TPC 250X, the TPC BBR is a ground up build, not a conversion.

Available as a full build or you can order our frame kit and build you own TPC BBR.

Starting price for full build is $12,500.00
Starting price for conversion kit is $3,500.00

Full parts list required to build one from our kits.

TPC Parts:
(Conversion Kit)

Triple Clamps.
Front Hub.
Front Axle.
Front Rotor Plate.
Exhaust Pipe


85/86 ATC 250R Parts (including all associated hardware)

Wire Harness
Rear Brake caliper, rotor, and hub
Rear Axle
Axle Carrier
Axle lock nut
Rear Shock and linkage.
(Please note suspension travel is limited by what shock and linkage you use. All TPC's built by TPC come with Elka Long Travel Shocks) We can also
do the 450R linkage but it will require custom swing arm. Please call for pricing on upgrade.

06-up TRX 450R, (including all associated hardware)

Rear Brake Master Cylinder and brake pedal.
Foot Pegs
Rear Fenders
Rear Hubs
Grab Bar

2002 CR 250R (including all associated hardware)

Fuel Tank/Shrouds

05-08 CRF 450R (including all associated hardware)

Front Brakes
Steering Stem


Maier 86/87 200X Front Fender (TPC Option)

ITP or DWT 2+3 4/144 Front Wheel

TPC Trikes, TPC Parts, TPC Accessories, and TPC Racing are a product of KGB MotoSports LLC

Copyright 2020 KGB MotoSports LLC