Free 2-Day Shipping on Orders Over $50
Winter Kit Special * Save 20% When You Buy a Top & Bottom
  • OneUp Components Chain Guide
  • OneUp Components Chain Guide
  • OneUp Components Chain Guide
  • OneUp Components Chain Guide  Detail
  • OneUp Components Chain Guide  Detail
  • OneUp Components Chain Guide  Detail
  • OptionsOneUp Components -
  • OneUp Components -
  • OneUp Components -
  • Detail Images - Detail
  •  - Detail
  •  - Detail
OneUp ComponentsChain Guide
$45.00 - $79.00

Item # OUC000G

Select options
  • Cancel
  • Select options
  • ISCG05, Bash ($79.00)
  • High Direct Mount, 30-38t ($45.00)
  • ISCG05 Top Guide, 26-38T ($49.00)
save for later
  • 100% Guaranteed Returns
  • Free 2-Day Shipping
    on orders over $50

Item # OUC000G

Lives up to its name.

The first chain guide designed to be both Oval and Boost compatible, the OneUp Components Chain Guide eliminates dropped chains forever and doubles your chainring's life. Tipping the scale at a meager 35 grams, the OneUp Chain Guide weighs practically nothing, and can save you money in less than a season thanks to its highly protective design.

  • Chain guide prevents dropped chains from disrupting your flow
  • Light, durable alloy is virtually weightless
  • Compatible with both oval and Boost
Tech SpecsWeight
Tech Specs
7075 aluminum
Mount Type
Chainring Sizes
Recommended Use
mountain bike

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead



ISCG05, Bash
High Direct Mount, 30-38t
ISCG05 Top Guide, 26-38T

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead


Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

Wish I bought this sooner.

  • Familiarity: I've used it several times

Modern 1x drivetrains are almost perfect, but even the extremely occasional dropped chain can ruin a race, ride or flow trail. I usually drop chains on my XC bike when I'm in the highest gear and take a chunky descent. I bought this to ensure it doesn't happen again. Installation is stupidly simple and the kit comes with everything needed with the included shims I was able to get enough clearance at both extremes on the cassete. I really like the sliding mount to adjust for chain ring size. It's pretty light weight and made of really tough plastic. Seems expensive but worth every penny

Unanswered Question

Is the ISCG05 Bash the bash guard and guide combined? The image and description are misleading but the price is consistent with the guode/bash combo.

Don't get dropped

  • Familiarity: I've used it several times

This is a set and forget component. As a real OneUp fan it was a no brainer to add this to my bike. Dropped chains are mostly a thing of the past but it's nice to have a small, light and simple assurance it definitely won't happen especially if you are drawn to the rougher terrain and high-speed chatter.

Installation video:

Prevents dropped chains!

  • Familiarity: I've put it through the wringer

An easy to install chainguide that prolongs the life of your drivetrain and virtually eliminates chain drop. It comes with black, and green guide, as well as a bunch of different shims to get the proper spacing.