Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
125cc High Comp. PistonFits all years Grom and Monkey The DHM Stock Bore High Compression piston has produced more HP than any other stock bore kit, and is the highest compression stock bore piston on the market! It has a high compression dome that is made exclusively for DHM and isn't available anywhere else. It has gone through extensive testing on and off the racetrack and has proven to provide the most power possible from the stock bore. ~13. 2: 1 compression 52. 4mm
Fits all years Grom and Monkey
The DHM Stock Bore High Compression piston has produced more HP than any other stock bore kit, and is the highest compression stock bore piston on the market! It has a high compression dome that is made exclusively for DHM and isn't available anywhere else. It has gone through extensive testing on and off the racetrack and has proven to provide the most power possible from the stock bore.
- ~13.2:1 compression 52.4mm stock bore piston
- Larger ring and skirt oiling holes than other pistons on the market
- Larger oil spring to increase oil volume between the oiling rings
- Oil ports under the pin holes to keep the wrist pin lubricated
- 360 Degree skirt design to increase overall strength
- Racing piston ring kit with pins and circlips
- Valve reliefs that clear valves up to our 27.5/23.5 cylinder head
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Includes a new base gasket and head gasket
*Requires NGK CR9E (6263) spark plug (not included)
*Requires 91 or greater octane fuel
**Installing this piston requires setting the ring gaps. If you are not comfortable with this, please have your local shop perform the install. Failure to set the proper piston ring end gap can result in premature failure or seizure of the engine. We recommend an end gap of .007-.009" on the top ring and .009-.011" on the bottom ring.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy