Up To 50% Off Gear, Apparel & More Shop Semiannual Sale
Home Page


When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
  • Just In
  • Learn

Underbash Guard

Be the first to review

Style & Size:


Why We Like The Underbash Guard

The OneUp Underbash Guard mounts to our mountain bike's ISCG-05 tabs and protects our chainring and bike frame from impact damage. It's designed for frames with a 2-bolt ISCG-05 mount such as Evil and Rocky Mountain. If your frame has a 3-bolt ISCG-05 mount, OneUp recommends contacting your frame manufacturer to see if it's compatible.


  • Mountain bike bash guard to protect chainrings and frames
  • Includes 3 different sizes of bash plate to fit 38 - 36t chainrings
  • Easy installation doesn't require crankset removal
  • Compatible with round and oval chainrings
  • Item #OUC001G
aluminum, glass-reinforced thermoplastic
Mount Type
ISCG 05 (2-bolt only)
Chainring Sizes
28 - 36t
Claimed Weight
2.4oz (68g)
downhill, enduro, trail

What do you think about this product?


Selecting an option will reload the available reviews on the page

Sorry, we don’t currently have any of those types of reviews for this product.