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-   -   Rims on Dahon Speed D7 (http://www.bikeforums.net/folding-bikes/239520-rims-dahon-speed-d7.html)

vxla 10-24-06 12:57 AM

Rims on Dahon Speed D7
 
I picked up a Speed D7 from a local seller here and noticed there were a couple of maintenance issues that needed attending to. One thing I'm curious about are the rims: they're very rough and I get quite a bit of noise when braking. Is this a normal pattern for smaller aluminum rims?

Also, I'm having major issues with shifting and I've never had a folder before. How "smooth" should shifting be for a stock Speed D7 with no modifications to it? I'll have to visit the LBS as I've never been good with gearing (such the reason that I ride fixed gears), but I just wanted to know what I'm walking into.

Thanks.

- vxla

mtb29 10-24-06 10:25 PM

I have a Speed 7 that has made scraping sounds when braking. When I hear the scraping sounds I have found bits of aluminum in the brake pads, when I dig out the aluminum the sound goes away but the rims look rough from the scraping. Brakes work ok until the next scraping episode. I haven't changed the stock pads, softer pads would probably solve the problem.

I have not had any shifting issues, shifting is fine.

vxla 10-25-06 09:32 AM

i got my derailleur tuned last night, it was just out of whack. ill have to work on finding some softer brake pads this weekend.

folder fanatic 10-25-06 11:08 AM

For any bike-even a lesser price folding bike-I recommend to replace the stock brake pads to a high quality ones like a softer Kool Stops as soon as possible. Either do the replacements at purchase or at the time of the first tune-up soon afterward. I have done so with the Brompton, am doing it with the Dahon (it's at the shop as of this posting) and will do so for a future purchase of a folding bike no matter if it used in any condition or new right out of the box.

eubi 11-03-06 09:40 AM

IMO, the rims used by Dahon are not the best quality. There is a mismatch where the rim ends come together (this has happended to me on three warrantee rim changes).

As for your problem, I thought maybe burrs at the mismatch were imbedding in the brakes. If this were the case only one side of the brake pair would be affected.

I JUST went to check the rims on my Speed 7. I never heard any scraping sounds but the rims are scored.

folder fanatic, I'm going to take your advice on the Kool-Stops. Thanks!

SesameCrunch 11-03-06 01:36 PM

Quote:

Originally Posted by folder fanatic
For any bike-even a lesser price folding bike-I recommend to replace the stock brake pads to a high quality ones like a softer Kool Stops as soon as possible. Either do the replacements at purchase or at the time of the first tune-up soon afterward. I have done so with the Brompton, am doing it with the Dahon (it's at the shop as of this posting) and will do so for a future purchase of a folding bike no matter if it used in any condition or new right out of the box.

I'm curious why you say this. Your comment assumes every brake pad on every bike is not good. I've got two bikes with Shimano pads and they work fine. What experiences led you to this conclusion?

juan162 11-03-06 07:56 PM

SesameCrunch
I know you're not asking me, but I've been told by many people (including several not from this forum and a LBS owner) about changing to Kool Stop pads. If you're happy with yours, don't switchem :) . I'm sure there are other pads that are also high quality, but everyone I talk to tells me to switch to Kool Stops. I myself will wait 'til mine are warn before switching...if it ain't broke, don't fix it.
Juan

SesameCrunch 11-04-06 10:48 AM

Quote:

Originally Posted by juan162
SesameCrunch
I know you're not asking me, but I've been told by many people (including several not from this forum and a LBS owner) about changing to Kool Stop pads. If you're happy with yours, don't switchem :) . I'm sure there are other pads that are also high quality, but everyone I talk to tells me to switch to Kool Stops. I myself will wait 'til mine are warn before switching...if it ain't broke, don't fix it.
Juan

Yeah, I've heard good things about Kool Stop also. I may try them when it's time for a replacement. The way folder_fanatic worded his advice, I thought maybe there was something I was missing out on.


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