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Shimano wheel - bearing upgrade
Picked up a new Shimano's R560 wheelset. Anyone know if the bearings
setup can be upgraded with Dura-Ace (level) cup & cones (and grade 25 balls)? The bearings feel way rougher than Dura Ace wheels. Or are the bearings setup the same level (doubtful given the price) and just need to be "broken in"? Of course, I'll take it apart and add grease as shop owners here have stated Shimano stuff often comes undergreased. Also, would the pro's recommend completely de-tuning and tensioning or just a simple truing? These are the first wheelset with nipples at the hub so don't know how user friendly (durable) the nipples are to post- production manipulation. Pls no need to preach about the benefits of handbuilt wheels to the choir - I build my own. I just wanted to try them as event wheels (e.g. TTs) for the aero advantage of low spoke count and bladed spokes. |
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Shimano wheel - bearing upgrade
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Shimano wheel - bearing upgrade
On 2007-08-09, Tom "Johnny Sunset" Sherman wrote:
No worry, we have to cover h*lm*t effectiveness, threaded verses threadless headsets, greased versus non-greased square tapirs (er, tapers), clinchers versus tubulars, brifters versus bar-end and Careful there. Greasing your tapir is illegal in many states. |
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Shimano wheel - bearing upgrade
On Aug 8, 8:53 pm, wrote:
The bearings feel way rougher than Dura Ace wheels. Have you adjusted the play? Often new ones are too tight. |
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Shimano wheel - bearing upgrade
1. don't think you can upgrade the bearings. not economically anyway. 2. shimano doesn't undergrease. grease doesn't "flow" or "circulate", so anything that's not actually in the race pathway is surplus. what may be attributed to "undergreasing" is in fact shimano bearing failure. bearings tight enough to not wobble the wheel in the truing stand are too tight when clamped tightly with the skewer. you therefore need to back them off slightly to have decent bearing life. 3. i wouldn't touch the spoke tension at all. unless the wheel is untrue already, they don't need adjusting in my experience. unless they've been "helped" by the wheel monkey at your lbs that is. excess spoke tension causes rim cracking and does /not/ increase wheel strength. Thanks for the response. The reason for wanting to touching spoke tension is because of uneven tension, based on the the spoke pings. It's not as bad as say a Ksyrium, but at least a couple of the spokes are disturbingly low. I will adjust the bearings to be snug WITH QR. |
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Shimano wheel - bearing upgrade
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