TPR Racing 63mm 180cc Big Bore Kit Honda Grom 125

TPR Racing 63mm 180cc Big Bore Kit Honda Grom 125

SKU #: TPR-1001

Regular Price: $245.00

Special Price $174.99

TPR Racing 180cc Big Bore Kit for Honda Grom 125!
$174.99 In stock


Availability: In stock

TPR Racing 63mm 180cc big bore kit for Honda Grom 125! Unlike many smaller displacement kits on the market that reuses bore out OEM cylinder, TPR Racing BBK is made entirely from their own cylinder casting! Oil cooler ports are built in, allow for the correct pressure, flow, and function of a oil cooler! Come included with 3/8" slip-fit barb fittings for rubbers hose, however for the die-hard builders and racers, you can also make custom braided lines with AN fittings if you would like! High quality BBK that will give you the best bang for the bucks performance!





Aftermarket fuel controller and upgraded fuel injector is required. Professional installation is highly recommended!

Performance upgrades to the clutch is highly recommended!

No Case Boring Needed.


Disclaimer:  NO WARRANTY ON RACE ENGINE parts or engine bore up kits.  There is no warranty stated or implied due to the unusual stresses placed on these parts and because we have no control over how they are installed and used.  Steady Garage will not be held liable for any failure or damage caused directly or indirectly from use of these products or engine.  The installation and use of these products or engine shall be conclusive evidence that the user assumes full responsibility for any damage caused directly or indirectly by their use.


This product is legal for closed-course competition use only; for racing vehicles (a competition vehicle not used on public highways). Intended for off-road use or race purposes; may not meet regulations of pollution controlled roads or highways. Not legal for vehicles registered and use in California. 

Warning-icon WARNING: Cancer and Reproductive Harm - -- Learn More