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OneUp ComponentsChain Guide


Item # OUC000G

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  • ISCG05, Bash ($79.00)
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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 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

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead


View more Chain Guides & Bash Guards

    What do you think about this product?


    >Rating: 5

    No mo dropped chains

    I've used it several times
    True to size
    Size Bought
    One size
    6` 0"
    195 lbs

    Looks great, easy install just read the directions. The shins are great to adjust chain placement. Highly recommend.

    >Rating: 5

    Wish I bought this sooner.

    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


    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.

    >Rating: 5

    Don't get dropped

    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:

    >Rating: 5

    Prevents dropped chains!

    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.