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Your cart is empty.Product Description
Installation details (black and red are the same)
Installation Requirements
- If your seat down tube don't have the small lugs for mounting the front derailleur as shown in the picture, then you will need to purchase a clamp in order to mount this chain guard.
- We don't include clamp for this chain guard because bicycle seat down tube diameter is different
The function of the two screws
- Normally, you don't need to turn the M4 screws, you only need to turn the M3 screws to adjust the angle, so only the M3 hexagonal wrench is included in the package.
- But when you need to change to the short arm included in the package, you need to turn the M4 screw.
Easy to setup and adjust
Road bike gravel bike chain guide parameter
- Material: 7075 Aluminum alloy + high quality plastic
- Weight: 50g (very lightweight)
- Color: Black, Red can choose
- Scope of application: 1x Drivetrain, Narrow Wide Single Chainring
- Feature: Keeps the chain tight against the chainring, prevents the chain from falling off
Product details
Package include
- 1x screw
- 1x nut
- 1x M3 hex key
- 1x short arm
- 1x bike chain guide ( the long arm is mounted on the chain guide)
Long arm
- The length of the arm is adjustable, Secured by a small hex bolt which is accessed using the provided M3 hex key.
Short arm
- Adjust the chain guide position make sure the chain in the center
- If you find that the short arm is missing, you can tell us
2 different arm lengths
- The ruler is in centimeters, the short arm is 2cm and the long arm is 4cm, which one to use depends on your chainring setup.
Donna Kielbasa
Reviewed in the United States on March 14, 2025
I used this for my TT bike, the gap is pretty large and it took some modification but I was able to file the inside piece down so the chain does not fall off the inside and outside of the chainring.
Snow 1
Reviewed in Germany on January 5, 2025
Macht genau was es soll, war leicht zu montieren
Anonymous
Reviewed in the United States on March 29, 2024
Works well. Guide cages looks a little fat at first but actually it is pretty much right on target... No chain rubbing on inside or outside with just enough room to spare. (12 speed cassette) Plastic of the cage is fairly thick requiring careful adjustment to not scrape the inside of the (Shimano Ultegra) crank, but this turns out to also be the exact correct position to just barely not rub the chain when on the 11 tooth cog. And looks decent, even on a nearly $10K bike!
lonny morgan
Reviewed in the United States on March 22, 2024
too flimsy
DM
Reviewed in the United Kingdom on February 16, 2024
I had to buy a clamp to add this to my gravel bike but managed to fit itr easonably successfully with that in place. I've previously used a OneUp guide andbecause this one doesn't come with any spacing shims fitment is a little bit and miss. I think I may 3d print some spacers to get it perfect but it will just be lock if it works for you straight away. The single bolt clamping with no register is also a little disappointing as alignment is a bit hit and miss.
PAUL
Reviewed in the United States on November 24, 2024
Product works great, haven't had the chain come off while riding since I put it on- over 3,000 miles. I did trim the slide so it didn't contact bike frame- it's hollow aluminum, so it cut easily with hacksaw.
Forever Bright
Reviewed in the United States on December 26, 2023
I got this in hopes that it would work with my frame. The pictures made it look like it would. However, it doesn't fit and now I have to 3d print an adapter to make it work. Not great but not terrible. I do have a weird frame design due to the battery. The picture is how it will look once I get the part printed and should work great. I got rid of my front crankset and derailleur so my chain comes off easier on the trials. Hopefully, it will work. The quality seems really nice and fits the chain just wide enough to keep it in place without rubbing. Currently running a 9-speed setup with a thin 11-speed chain.
Customer Review
Reviewed in the United Kingdom on December 19, 2023
I have a Electric Folding Bike to which I've fitted a very large Front ring and an equally large Gear Block on the rear wheel.Unsurprisingly this has created a Chain alignment problem especially on the lower gears so this Chain Guide could well be the answer.As my seat tube is over 40mm finding a Clamp big enough to go around it is another problem i have to surmount.The Guide itself is well machined and comes with a small Allen Key which oddly only fits two of the three ajustment bolts. As for ajustment, it's made in such a way you can move it every which way to accommodate all angles so I have high hopes on fitting it to my machine...time will tell.Handy little device that could save you loads of aggro on the road.
John
Reviewed in the United States on December 18, 2023
Bought this for my 1x gravel bike build just for some added protection from chain drops. Running an SRAM series crank. There’s not enough clearance between the chainring and crank arm for this to fit.This doesn’t work for my setup.
Emily
Reviewed in the United States on December 13, 2023
Well made guide, I didn't realize I need a clamp to mount but once I get one it looks like it will do a fine job of keeping chain in place.
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