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DHM S1 Camshaft for the 2022+ Honda Grom / Monkey (Generation 2)


After testing multiple different variations of cams for the 2022 Grom, we've settled on this setup for stock bore and big bore bikes. We have maximized the lift using the stock valves and combined that with a very rideable duration that produces gains at every RPM in the rev range. 

DHM S1 Camshaft

  • Highest possible lift with stock valves
  • Gains across the entire rev range
  • +1-2HP over a bike with only intake/exhaust
  • Direct drop-in installation
  • Set valve clearance to .005” / .005”

Generation 2 Updates

  • Removable big bearing for ease of install
  • Duration adjustment to help tip in response and idle noise
  • Stronger heat treatment to increase overall durability

A tune is required to run this cam! We have our ECU flash available HERE and we also offer the aRacer Mini5 if you prefer to do the tuning yourself, available HERE.




Customer Reviews

Based on 51 reviews
DHM S1 Camshaft for the 2022+ Honda Grom / Monkey (Generation 2)

Excellent transaction from beginning to end! Excellent product! Excellent results/gains!

Paul Bourchdan
2022 DHM Stage 3 Kit

Easy to install . Great communication when needed A++ bike feels same of take of but pulls alot better so happy Thankyou

Mike anoos
Good all round

Just don’t forget to increase you rpm limit if you have a ARacer ecu

Michael Pick
Yep, it’s worth it. Big time - Pair this thing with their in-house tune

Pick your favorite air intake and exhaust. Pair this cam with their in-House/ecu flash - no-brainer

Kyle McHugh
2022 grom big boar kit

Great experience , anything performance wise DHM motors is the way to go .