Review of the MRP 1x (34.9mm Seat Tube Mount):

I put this chainguide on my bike when I went from a triple chainring crank to a 1x10 setup. It works well. It's really light, and if you put the seat tube clamp in the right spot to start with, you will have plenty of height adjustability to accommodate different size chainrings just by loosening one screw and sliding the guide up and down in its track.

Only two downsides I've seen, and they're not huge..first, even with all the fasteners good and snug, you can still rock the guide forward and back a little bit. Not much, and not enough to affect how it works. Second, the fasteners have shallow, round heads and are tightened with allen keys. The one that holds the guide to the mount is too shallow and too soft..the head wore after the first couple of adjustments making it impossible to tighten the screw enough. I had a regular socket-head cap screw I used in its place and the problem is gone.

The guide works well, though. It's surprisingly solid, even with the slight fore-aft movement mentioned above. I think if you have the ability to use the version with the bottom bracket mount, that's perhaps a bit more solid. But this seat-tube mounted version is working fine for me.

Review of the MRP 1x (34.9mm Seat Tube Mount):

I put this chainguide on my bike when I went from a triple chainring crank to a 1x10 setup. It works well. It's really light, and if you put the seat tube clamp in the right spot to start with, you will have plenty of height adjustability to accommodate different size chainrings just by loosening one screw and sliding the guide up and down in its track.

Only two downsides I've seen, and they're not huge..first, even with all the fasteners good and snug, you can still rock the guide forward and back a little bit. Not much, and not enough to affect how it works. Second, the fasteners have shallow, round heads and are tightened with allen keys. The one that holds the guide to the mount is too shallow and too soft..the head wore after the first couple of adjustments making it impossible to tighten the screw enough. I had a regular socket-head cap screw I used in its place and the problem is gone.

The guide works well, though. It's surprisingly solid, even with the slight fore-aft movement mentioned above. I think if you have the ability to use the version with the bottom bracket mount, that's perhaps a bit more solid. But this seat-tube mounted version is working fine for me.

Review of the MRP 1x (34.9mm Seat Tube Mount):

Kept my chain from jumping out of the chainring during spirited hammering down some "uneven" terrain. Just make sure that you have it well-placed to prevent chain rub.

Review of the MRP 1x (34.9mm Seat Tube Mount):

I recently converted my Tallboy to a 1x10 and this fit the bill. Seems kinda flimsey at first glance, but once mounted that thing kept my chain on when riding rough trials. Add to that TreeFort's excellent service and fast shipping and your golden!

Review of the MRP 1x (34.9mm Seat Tube Mount):

I have several frustrations with this guide. 1) The narrow range of the chain guide leads to chain rub on my 1x10 system. 2) You only have vertical adjustment (besides the rotation of the clamp, but that should be kept straight). 3) The clamp shifts when tightened because of the hinge design, making it difficult to get the positioning just right. 4) When it is positioned "just right," the chain will still rub at one extreme or the other (or several H/L gears) on a 1x10 drivetrain. 5) The spacers included are huge in comparison to the bolt they are supposed to fit around. 6) With more than one spacer, the guide mount bolt will never reach the nut on the other side, so hope you don't need multiple.