09-05-2013, 04:10 AM
So i bought an 80s Araya rim, but it's got major brake marks that make over 85% of the rim show silver instead of black. Any way to make the rims go back to the clean smooth black look?
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(09-05-2013, 09:41 PM)nfmisso Wrote: I have become extremely leery of used rims since the rear rim cracking on our T50. http://forums.bikeride.com/thread-2920-page-3.html
The braking surface is pretty thin to start out with, and just the use of the brakes makes it thinner....
Rims like tires, are maintenance items, that require regular replacement.
(09-06-2013, 03:51 AM)1FJEF Wrote:(09-06-2013, 12:11 AM)hawaiibike Wrote: I'll keep that into account. At least this is only the front wheel. I'd really be out of luck if I needed to find another 126mm rear.When or if you need a rear wheel for a 126mm frame, start a thread & we'll show you options.
(09-06-2013, 01:41 PM)GeorgeET Wrote: ......
So all that trouble to keep old wheels thought me next time to buy new wheels. Possibly with sealed bearings.... Any thoughts on sealed bearings?
.......
(09-06-2013, 02:58 PM)1FJEF Wrote:(09-06-2013, 01:41 PM)GeorgeET Wrote: Anyway upon examining the wheel I found lots of wear on one cone , some on the other, fortunately I had a last replacement cone, however I was surprised by the quick wear.Was the wear like bad pitting?
(09-06-2013, 03:05 PM)nfmisso Wrote:(09-06-2013, 01:41 PM)GeorgeET Wrote: ......
So all that trouble to keep old wheels thought me next time to buy new wheels. Possibly with sealed bearings.... Any thoughts on sealed bearings?
.......
Cartridge (aka sealed) bearings - the only way to go. They have been around for decades, like my Suzue hubs, currently on my SR Sierra Sport. We also have cartridge bearing hubs on our T50, they are Wheelmaster, with 100/135 O.L.D. 40H high flange, and incredible bargain from Niagara - around $70- for a set, black or silver. Harris stock Quanda/Quanta freewheel hubs with 100/126 O.L.D. Wiggle has these:
http://www.wiggle.co.uk/miche-primato-pair-of-road-hubs/
http://www.wiggle.co.uk/miche-racing-box-pair-of-hubs/
which as far as I can tell are the same except color. They are the lowest cost 100/130 cartridge bearing hubs I have found. Wheelmaster (see Amazon) also offers 36H 100/135 hubs with cartridge bearings for a little bit more than the 40H. Amazon has Origin 8 130mm OLD hubs for freewheel ($70-) and cassette (about 2X the cost).
(09-06-2013, 07:53 PM)nfmisso Wrote: Hi George;^^^^^^^^^^^^^^^^
For my ISO590 wheels, I use Sun CR18. After Velocity Dyad rims for the T50; they are my first choice for ISO622 - very very easy to build a true wheel. And my next ISO559 wheels will be Velocity Aereoheat (same extrusion as the Dyad). I have also used Alex Adventurer (559/36H) and Alex R19 (630/36H) rims with success. If Velocity offered the Dyad/Aeroheat rim in 590 - I would use it.
http://www.amazon.com/dp/B001GSQSG0/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=DGLVFDGHFPGJ&coliid=I3KWR4K6PDY0RJ
I haven't used Weinemann for any wheel build.
Rapid cone wear: as you mentioned hardness (most likely), next most likely a tiny (microscopic) hard particle. Small aluminum metal particles will oxidizes quite rapidly; aluminum oxide is very hard, and will wear even hardened steel very quickly.
(09-06-2013, 03:34 PM)GeorgeET Wrote: Yes there was a crescent track of pitting irregularities. That's the type of wear I saw in the old cones I replaced.I've only run into bad pitting on used bikes that have been abused and ridden with little or ancient dried out grease & stored outside for years. Yours surprise me. Salt air & tiny sand particles maybe?
(09-07-2013, 02:21 AM)1FJEF Wrote:(09-06-2013, 03:34 PM)GeorgeET Wrote: Yes there was a crescent track of pitting irregularities. That's the type of wear I saw in the old cones I replaced.I've only run into bad pitting on used bikes that have been abused and ridden with little or ancient dried out grease & stored outside for years. Yours surprise me. Salt air & tiny sand particles maybe?
Just the front wheel?