2pcs Bicycle Chain Tensioner Adjuster Aluminum Alloy Chain Fastener for BMX Fixie Bike Single Speed Bicycle

Performs exactly as intended, easy install, minimal appearance on bike due to small size.

One of the tensioners snapped within 1 month of use. Wish I had bought something more heavy duty instead. I had only rode my bike on simple flat roads (no trails / tricks).

For youth, the smaller stud, not the 14 mm/ Big stud

Slick asf looks great works good

These can be ok. They look nice and blend in with the overall bike but, because of the design, the bolt that tightens up the chain can eventually be blocked by the rear wheel axel. They have a limit for how much they can tension, it's why they come with 3 different sized bolts. There are better designs elsewhere.

My Aventon Mataro did not have any chain tugs and there was a slight strip in the thru-axle thread for my rear wheel. This resulted in the lug nut on the drive chain side to slip and not keep the chain tension required and the wheel tilting and catching on the frame.This chain tugs are so simple but effective. I thought they wouldn't fit at first but realized that it's meant to be integrated into the horizontal dropouts unlike some cheaper chain tugs that offset the frame washer. Perfectly fits and seems well constructed. I'll update if they explode while I ride

I put these on my single speed to make it easier to get my chain tensioned correctly. These are really inexpensive, and probably one of the best things I've got for my bike in terms of value.These are very easy to install; they don't even come with instructions, given how obvious it is how these go together. They come with a few different options in screw lengths, so it seems like they would fit just about any bike.These actually made a bigger difference than I would have thought in terms of how well my bike performs, so if you have a bike that these work with, I'd highly recommend them.

Could not use on Electra townie as the slot on frame to put the axle bolts opens towards front unlike pictures for product and the design does not allow proper fitting to the frame and putting axle nut back on. See picture how the the open end is not where you tighten. Be sure your frame looks exactly like the picture as the design is not universal for single speed bikes . Should have had a clear warning in description how it not an universal product. Can't return since it was past the return window when I tried to install.