Sunrace Sgs Rear Friction Derailleur w/Braket: Rdm10, Silver

Works and fits on my 1970 schwinn suburban.

I used this derailleur to replace the broken one on a '79 Raleigh that I'm rebuilding. It bolted right up, accepts the 1/2" x 3/32" chain, and works seamlessly with the original friction shift lever. The original unit was a short cage but I couldn't find a replacement anywhere, but I figured at $15 I'd try this long cage unit. It's a perfect fit! Tuning is quick and easy (though it wasn't necessary - it shifted perfectly right out of the package). Very satisfied with my purchase! It also arrived earlier than expected, which was a great bonus.

This is the best, cheap derailleur for friction shifting on the market. I have bought this for my commuter bike which has an 11-32T, 7-speed JIM cassette from Rivendell. Rivendell sells the same RD-M10 without the integrated hanger and they too believe it's the best budget derailleur you can buy.While the product says it will only shift up to 28T, I can personally attest to it's ability to shift up to 32T without any issue and, honestly, it can probably even manage 34T with some fiddling; 36+ might be pushing it. It can also be adjusted to accommodate up to 8 speeds, despite being advertised for 7 speed only.My only complaint about this derailleur, if I have any at all, is that it does not have a lot of spring tension. This is both a blessing and a curse. It makes shifting with a friction lever a bit easier, however, it leads to a bit of slack in the chain when in the smaller cogs. It's not a problem by any stretch and does not impact performance of the product at all but I believe it's been the cause of a few dropped chains for me (1x7 drivetrain). I would have liked to see a little bit stiffer of a return spring but, overall, I have no real problems with this thing for less than $10.

The rear long-cage SIMPLEX derailleur on our old Peugeot road bike snapped at the tab that holds the cable. I looked everywhere for information on replacement and came-up empty. SIMPLEX doesn't appear to exist any more, though some short-cage derailleurs are still around but expensive. Looked at possible Shimano options, but they didn't seem right, and not a particular good visual match to the SIMPLEX. This SUNRACE mimics the original Simplex in appearance and is a good match. It bolted into the Peugeot frame identically to the SIMPLEX, like it was made for it. The Simplex only had one retainer. To avoid taking the chain apart to fit it in the cage (under the retainer) I removed the cog which is mounted a screw, to get the chain out. The Sunrace has 2 retainers, so I had to take out both cogs to route the chain through the cage (this takes one side off the end arm but doesn't release any springs). I then reset the cogs for the chain to run the proper way. Its a bit fiddly feeding the bolts through the cogs but I didn't have a chain tool and I'm not sure this took any longer than it would have to take the chain apart etc. The bolts seemed to be metric. After I put it in and reconnected the old cable taut, it was a pleasant and unexpected surprise to find that it required no adjustment out of the bag. It's as good or better than the one it replaced. Fit like a charm. Will have to see how it goes, but it appears well-made.

was right part

If you have a really old bicycle with an old friction shifter system where you need an inexpensive rear derailleur, you should consider this one. It shifts to 28 teeth cog, it's designed to shift up to 7 speeds and works pretty well for the price of 3 cups of coffee with delivery. Installed it on 1970s bicycle that have this part missing and went to town. Delivery was a bit delayed due to a severe weather, but Amazon and seller made communication very clear and it arrived pretty fast.

The derailer fit, works perfectly, was easy to install and a great value.

It is a shockingly cheap looking derailleur, but it is mostly all right. The look of the stamped steel cage plate was a little off-putting, and it was difficult to unbolt, but I got it undone and was able to thread the chain through it.The one fault is that the limit screws aren't tight, even wobble a little, and require washers (for the 32T end) and probably a metric nut for the other end of the range to stay in place, for the adjustments just won't hold without these very minor modifications.Otherwise, on the four bike rides I have taken since installing it, it has shifted easily and does accommodate my 12-32T cassette.