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Decha Performance Honda Grom / MSX125 Manual Cam Chain Tensioner


The Honda Grom hydraulic chain tensioner is a weak point and must be replaced for high revving engines!

The Decha Performance manual tensioner is an OEM replacement that provides consistent tension on the cam chain arm to eliminate chain slap and prevent valve to piston contact that can happen when the stock hydraulic tensioner fails. The body is made of a hardened and coated steel for a long life, and includes two high quality o-rings for a great seal. Capture nut is of course anodized in black for a sleek look, with a nylon locking nut to top it off. Adjusting cam chain tension is as simple as a turn of a flat head screwdriver. You won't find a higher quality and cheaper solution on the market!

  • Hardened and coated steel for durability
  • Double oil resistant o-rings for perfect seal
  • Black anodized capture nut and nylon locking nut
  • Direct replacement for OEM tensioner

**This manual tensioner is perfect when used with the Koso tensioner arm, available HERE

Customer Reviews

Based on 9 reviews
Jeremy Souza
Great motor insurance

Product is very solid and worked perfect for my build. Recommended even if youre staying stock

Challon Holt
Great Product

Easy to install, well made. Great product!

Josue Garduno

Decha Performance Honda Grom / MSX125 Manual Cam Chain Tensioner

Solid Upgrade

Ordered the manual tensioner to replace stock. Stock cap was dented. It's definitely a quality item and easy to install. Just remove old tensioner parts (bolt,washer and spring). Inserted, tensioner, set, and lockup nut. Very straightforward.

Only thing is there doesn't seem to be any specs on how tight to set the tensioner. I recall only one video (i think by huntertuned) that actually states how much to tighten. So recommendations would be nice.

As for customer service and shipping. Always great at DHM.

Great enhancement.

Very well made, easy to adjust. A much better way to control the cam chain tension which the oem one fails to do with hot cams and lots of rpm.