Sunrace MF-M4S Freewheel Fw Multi Sunrace Mfm4s 13-34 7s Index Ucp

Please disregard my previous discrepancy. This item is fine, I was holding it wrong when testing it's functionality. Sorry for the Confusion. Thanks again! Mr. Anderson

If this is the gear ratio you need , don’t hesitate . Really good quality at a reasonable price and shipped fast . I can’t wait to try this out on my Ebike .

I replaced the freewheel on my Northrock xc27 because the low gear wasn't quite low enough and the high gear was not quite high enough. I've only had this freewheel on for a couple weeks, but I am very happy with it! The large first gear really gives a nice amount of torque and power. High gear feels like it should. The shifting is as smooth with this as it was with the original. The only thing to be prepared for is when shifting from first gear to second, there is quite a difference in gear size, so be ready for that jump up. It reminds me of a granny gear in a pickup. As long as you're ready for it, it's fine. I also don't get the chrome color on the other gears, mine are all black because of the lubrication anyway. I would recommend this, and am thinking of getting another one for another bicycle.

Just like the factory! Worked great with easy install - this was a direct replacement for my Trek.

I resurrected a 2006 Trek 3700 and this cassette fit perfectly. I also replaced the chain and cleaned/repacked the rear wheel bearings while I was doing this and the bike rides like it's brand new! Full disclosure I'm not a bicycle mechanic, but here's what I figured out the hard way. I didn't need the chain whip tool to remove this type of cassette from my Trek 3700. All I needed was the sprocket remover socket and a ratchet. My cassette was really frozen on there so I used a piece of pipe to get some extra leverage on the ratchet and the cassette eventually came off.

I needed this to get my bike back in working order. I have not had time to install it yet but it looks good

Great freewheel. 7 speed 13-34 teeth. Paired it with a Shimano Altus M311 22-32-42 170mm w/o CG crankset in front. Construction feels QUALITY made. I’m so amazed how CRISP the bearings sound when the wheel is rotating when you stop pedaling. IT IS CRISP, almost sounds like the whole bike is brand new. I installed it on a Genesis walmart mtb 29er as a project bike to make the bike feel lighter in the trail.

Still using freewheels. Glad these are still available. Shifts well, reliable and inexpensive