Singlespeed & Fixed Gear - MKS chain tensioner installation

This is probably a stupid question, but with MKS chain tensioners is part that goes around the axle supposed to be on the inside or the outside of the dropouts. Thanks.

true dat

wrong. inside. keirin frames are spaced to have them on the inside. you can run them on the outside if your frame does not fit them, but its always al ittle sketchy to tighten the nuts down on anything other than the drop outs. that said, i've done it in the past, and im not dead. but they are intended to go on the inside.

Thank you.

Yes, 128 is correct.

I have mine on the outside, but with a washer, then the nut.

Inside. Otherwise your track nuts are not grabbing the frame.

I've been enlighten. how thick is that washer on them mks tensioners?

1.5mm

that means i would have to reduce my cone nuts by 1.5mm to make them work inside. i just ordered a pair, i never knew they go on the inside.

1.5mm

this is why many keirin frames are spaced at 123mm :)

that means i would have to reduce my cone nuts by 1.5mm to make them work inside. i just ordered a pair, i never knew they go on the inside.

I seriously wouldn't worry about it - especially with a steel frame.

i can just bend the drops 3mm, no prob

I think running them on the outside if you have to isn't exactly disaster. Just look at the Surly Tuggnut - only mounts on the outside, plenty of people use them without issue. I wouldn't bend a frame if it isn't spaced to fit them on the inside - I'd just run them outside and let the frame be.

i was joking of course..

wrong. inside. keirin frames are spaced to have them on the inside. you can run them on the outside if your frame does not fit them, but its always al ittle sketchy to tighten the nuts down on anything other than the drop outs. that said, i've done it in the past, and im not dead. but they are intended to go on the inside.

+1 it is a little stretch but they are good tugs and my frame doesn't mind

Have you ever pulled a rear wheel? If not, you probably don't ride hard enough for the positioning of your chain tensioner to matter. If you have, then put them on the inside.

The other thing is that when placed inside the stay-ends, the tracknuts lock down without moving the hub. When they're on the outside (directly under the track nuts), they tend on some frames to cause the hubs to "walk" slightly while you tighten them. It gets quite frustrating when you can't tighten up your wheel where you want it.

I just picked up a set of the larger ones for aluminum frames. They won't fit inside the drops on my cannondale without spreading them some. I'm a little sketched out about that, but I'm also worried about running them on the outside of the drops. Any ideas?

Have you ever pulled a rear wheel? If not, you probably don't ride hard enough for the positioning of your chain tensioner to matter. If you have, then put them on the inside.

If you have that means you aren't tightening your nuts down enough or that there was a lot of grease or oily crap between the nut and the dropout.

Inside. Otherwise your track nuts are not grabbing the frame.

i run them inside on my keirin frame and outside
on my soma frame. yes, if they are inside, then
the nut is not directly gripping the track ends, but
the knurled nut on the inside is gripping the track
ends. so either way only one nut which is attached
the axle is gripping the track ends.

this is why many keirin frames are spaced at 123mm :)

or 113mm ;)

+1 it is a little stretch but they are good tugs and my frame doesn't mind

they broke mks tugs suck!!!