Shimano Deore Rear Derailleur 510 from Nashbar - any good?
 

Hi
Nashbar has on sale a Shimano Deore Rear Derailleur 510, has anyone purchased it and giving it thumbs up or thumbs down?

Thanks
Mike

I can't say that I've actually used one (I have stuck to XT stuff pretty much for years). I do have one sitting on my desk here soon to go on my GF's commuter. I think I got it from Nashbar or Jenson for like $15. I LOOKS like a good mech, can't see much difference, I think the jockey cage plates and part of the parallelogram are steel, the rest is cast alloy. This is certainly no cheezy Tourney or such. I think someone here mentioned that the springs were weak compared to higher level stuff. But for $15, how could you go wrong?

I've run before on a commuter, worked fine.

Had one one my commuter and on my GF bike. They work fine.

Well, so far we know they will work fine on commuters or GF's bikes. How will they work on your GF's commuter bike? :D

How good are these offroad?

Springs are slightly weaker than normal, so yu have to ease up just little more on pedal pressure than LX and higher. On the other hand I think it shifts just as well as the late 90s LX stuff I had on my old rockhopper. Still, there are so many other variables in shifting it's hard to say. Most of what makes the shifting crisp are the cables and the shifters themselves.

Really thought this is a smoking deal. In shops I usually see deore rear derailleurs for around 40 dollars.

I rock a Deore 8 speed for the time being.

You can't be mashing your pedals on a 90000 degree incline while shifting with them without decreasing some pressure but I try not to do that on any geared bike.