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-   -   I need a loaner.... (https://www.bikeforums.net/classic-vintage/577061-i-need-loaner.html)

miamijim 08-22-09 11:38 AM

I need a loaner....
 
10-speed Shimano cassette for a 'project'. I'll pay shipping in both directions and it'll be returned in the condition it was sent. I need one for for mocking up a 10-speed/126mm wheel.

Thanks,

Jim

RobbieTunes 08-22-09 06:28 PM

Can I send it with my Cilo frame, and you send it back when you remove the stuck BB cup?
That way I'd pay shipping both ways.

miamijim 08-22-09 06:34 PM


Originally Posted by RobbieTunes (Post 9539023)
Can I send it with my Cilo frame, and you send it back when you remove the stuck BB cup?
That way I'd pay shipping both ways.

Sure.

wrk101 08-22-09 06:43 PM

Everything I have is nine speeds or less, otherwise, I would be happy to assist!

bill

cyclotoine 08-22-09 06:46 PM

why do you need the cassette? To set up the shifting? That will make a pretty darn weak wheel, I sure as hell wouldn't ride it or recommend it to anyone.

miamijim 08-22-09 07:07 PM


Originally Posted by cyclotoine (Post 9539119)
why do you need the cassette? To set up the shifting? That will make a pretty darn weak wheel, I sure as hell wouldn't ride it or recommend it to anyone.

Typicaly yes, it would make a very weak wheel with too much dish but I'm trying a variety of combination to minimize dish. Earlier today I mocked it up with a 9-speed cassette. After respacing it's within 1mm of having the same drive side dish as a 130mm Dura Ace hub.

130mm DA hub: ~18.4mm from the rims centerline to the right hub flange center
My 126mm 9 speed: ~17.4mm from the rims centerline to the right hub flange center.

Jim

cyclotoine 08-22-09 09:01 PM


Originally Posted by miamijim (Post 9539238)
Typicaly yes, it would make a very weak wheel with too much dish but I'm trying a variety of combination to minimize dish. Earlier today I mocked it up with a 9-speed cassette. After respacing it's within 1mm of having the same drive side dish as a 130mm Dura Ace hub.

130mm DA hub: ~18.4mm from the rims centerline to the right hub flange center
My 126mm 9 speed: ~17.4mm from the rims centerline to the right hub flange center.

Jim

You don't think a mm matters to the engineers who design these wheels? I do.

Mike Mills 08-22-09 09:59 PM

Here's my guess:

That 1 mm represents a 20% reduction in the out of plane bending stiffness of that wheel. Once the deflection (bending) exceeds the dish, your wheel could become unstable and fall apart.

I could be wrong. I'm probably (basically) correct.

Ronsonic 08-22-09 10:42 PM

Don't have ten. I'm still at 9 for the fancy road stuff. Otherwise I'd happily help out the homey.

RobbieTunes 08-22-09 11:04 PM

PM sent. I have the 10-er, and will ship it Monday, if I can find a box. Tuesday if I can't, 'cause I'll get one from LBS and cut it down.


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