DHM High Compression Stock Bore Piston (Gen 2) 2014-2020 Grom / Monkey

Name: DH Motoring DHM High Compression Stock Bore Piston (Gen 2) 2014-2020 Grom / Monkey - DHM High Compression Stock Bore Piston (Gen 2) 2014-2020 Grom / Monkey
Brand: DH Motoring
SKU: 32783387525223
Price: 120.0 USD
Availability: InStock
Rating: 4.8723 (43 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$120.00

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Color

Black

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Description

DH Motoring Stock Bore Racing Piston (Gen 2)

The DHM Race-spec stock bore 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 ...

Reviews

4.9

47 ratings

Great upgrade

Purchased the piston and head from DHM. Monkey now feels much safer in traffic. A lot fewer pulling off to let traffic past. It doesn't turn the Monkey into a Ninja, just makes the Monkey more enjoyable on higher speed streets. Not suitable for Interstate travel.

Ted · August 27, 2026