Sturmey Archer MFM307CS Freewheel – Chrome

8 reviews for Sturmey Archer MFM307CS Freewheel – Chrome

1. 

   Mark D. Tiemeier – 18 January 2025

   Better than NOS or vintage freewheels.
   I installed this on an 86 Bianchi Squadra with a 7 speed freewheel that was slipping. This one is lighter, stiffer, and has ramped teeth for indexed shifting, which works really well for friction shifting also. So much so, that it improves the quality of shifts very close to indexing. This is nice for those of us that are using it for L’Eroica or otherwise not too familiar with friction systems.Don’t bother spending money on an original or NOS freewheel that cost 3 to 5 times more. The problem with those are they are made of all steel and are heavy. To make things worse, they rust and don’t wear very well. This thing is nickel plated and very hard. It works well with a KMC Z 51 chain. I use this on a commuter/L’Eroica Classic. See you in Paso Robles.

2. 

   DaveN – 18 January 2025

   Nice, quiet freewheel
   Nice, quiet freewheel, with a very attractive finish. Shifts are adequately smooth but not quite as smooth as Shimano. Unfortunately, I tried to install this on an older Peugeot PX10 but it didn’t work out because the Simplex dropouts and narrower frame didn’t allow for more than 6 gears. I gave it to my girlfriend, and she’s happy with it.

3. 

   YogiBearAl – 18 January 2025

   Suprisingly good – used to convert a 6×3 friction shifting to speed to 7×3 SIS system.
   I recently converted a 6×3 speed friction shifting bike to a 7×3 speed SIS system. I am usually an all Shimano system guy as they have not failed me and shifted great. However finding a decent quality freewheel is getting harder these days. I retrofitted this freewheel along with other Shimano trigger shifters and front derailleurs on a bike from the late 80’s. Long story short, it is quiet, and shifting is very smooth. The finish is not as good as some of the Shimano freewheels that I have used in the past, but for the price and how well it worked, I would definitely recommend it especially for retrofitting older bikes. I love that it is quiet and smooth compared to older freewheels. The SIS trigger shifters have brought life back into an older commuter bike.

4. 

   Max Repooc – 18 January 2025

   Converting from 6-speed to 7-speed with this freewheel
   I ordered this freewheel (which is a single cog cluster with a threaded mounting system, not a cassette with main cluster and 2-3 small cogs, a splined mounting system, and lockring), to convert my 6-speed Shogun 300 to a 7-speed. The rear spacing on the chainstays for this bike is 126mm and the new freewheel is just a little bit too large. I expected this, although Sheldon Brown (http://www.sheldonbrown.com) had an article saying that 7-speed freewheels will fit on a 6-speed frame without having to space the chainstays wider… So I will have to get a space to make this work, but I am confident it will.This freewheel uses Shimano’s Hyperglide system, so the cogs having ramping on them to assist the chain in shifting.Make sure you have the right freewheel removal tool for this freewheel — which for this freewheel is, I believe, Park Tool FR-1.Make sure you have the right threading on your rear wheel hub to fit this freewheel. I don’t know what type of threading it is exactly (http://www.sheldonbrown.com/freewheels.html). I basically trusted that this 7-speed would work in my situation because the bicycle I’m working on is a Japanese bike and already had a Shimano freewheel.The freewheel makes the same amount of ratcheting noise that I’ve heard from basically all other freewheels, so I don’t think it matters to say it’s “super quiet!”

5. 

   Amazon Customer – 18 January 2025

   Grinding issue
   I finally got around to installing this freewheel on my wheel and it had a real grinding noise when coasting. I took it off and on and still same issue and even took it into the LBS and they said I had a faulty freewheel. Put on a used 20 year old freewheel and had no problem and no grinding when coasting. A lost $14 and a real bummer…

6. 

   Jigsaw – 18 January 2025

   Clicking from offset teeth
   The teeth on the cogs have a small offset towards the upper or lower adjacent cogs. This causes intermittent clicking against the side plates of my bike chain. Very annoying. Shifts well. Switched to another brand freewheel and clicking stopped.

7. 

   DJH – 18 January 2025

   Good product and seller
   Product appears high quality. Shipping agency had a problem, but seller was very responsive to send a replacement.

8. 

   joe – 18 January 2025

   So far so good. A bit noisy during coasts but that can …
   Used this to replace a 6 speed cog. Fit between drop-outs by a hair but functions well. So far so good. A bit noisy during coasts but that can be cared for.