Wheel/hub offeset... minor techincal alignmenent issue.

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weeksy59
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Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 13:44 pm

Right boys... here's the scenario.

I've got a Spearfish.... i built from scratch.

I've got 2 sets of wheels, a pair of Giant S-XC 29 and a pair of Hope Pro2/Crest 29.

When i fit the Hopes and the rear mech is adjusted for hi/lo, then i get all 10 gears.... However, when i then fit the Giants, when i go for the big ring on the rear, it slips over the top and between the spokes/hub. So, i adjust the hi/lo, brining it so the Giant no longer does that, but then the Hopes don't get the largest cog on the rear..

None of this is a major concern per se... but i like things RIGHT....

So, why are they aligned sightly differently, what can i do about it ?

I also notice this on the brakes too, they're about 1mm-1.3mm out when swapping between wheels (rear only) and need a minor caliper alignment when swapping wheels... Again... this is more just curiosity than an actual issue.

So, i bought a 2mm cassette spacer (single speed type) to see if i could use that to move the Hopes cassette out about 2mm to sort the alignment, sadly, this meant the lock-ring didn't work, so that was a no-go. So i was thinking of a 1mm cassette spacer instead ?

Any thoughts appreciated

Chunkers1980
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby Chunkers1980 » Mon Mar 11, 2013 13:46 pm

Different relative positions.

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supersonic
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby supersonic » Mon Mar 11, 2013 13:48 pm

Different models of hubs have different dimensions. This sounds entirely normal.

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weeksy59
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 13:50 pm

supersonic wrote:Different models of hubs have different dimensions. This sounds entirely normal.


Spacing the one that sits closest to the inside out by 1mm to bring to equal alignment is OK?

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nicklouse
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby nicklouse » Mon Mar 11, 2013 13:53 pm

set for each as you change.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
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weeksy59
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 13:54 pm

nicklouse wrote:set for each as you change.


Ewwwww. Really don't like that idea.... whilst it's not a major inconvenience... it's more than i'd like....

styxd
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby styxd » Mon Mar 11, 2013 13:57 pm

Just get a road bike ?

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nicklouse
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby nicklouse » Mon Mar 11, 2013 13:58 pm

weeksy59 wrote:
nicklouse wrote:set for each as you change.


Ewwwww. Really don't like that idea.... whilst it's not a major inconvenience... it's more than i'd like....

then run one set of wheels.
"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."

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weeksy59
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 14:01 pm

nicklouse wrote:
weeksy59 wrote:
nicklouse wrote:set for each as you change.


Ewwwww. Really don't like that idea.... whilst it's not a major inconvenience... it's more than i'd like....

then run one set of wheels.


I like that even less.

May be ridiculous, but i use the Hopes for road/XC stuff running Aspens.
I use the Giants with Ardents for trailcentre stuff, the logic being that i don't want to bugger up my nice Hopes...

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weeksy59
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 14:02 pm

styxd wrote:Just get a road bike ?


Bought one... used it 5 times.... sold it.... they're bloody rubbish.

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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby styxd » Mon Mar 11, 2013 14:03 pm

weeksy59 wrote:
nicklouse wrote:
weeksy59 wrote:
nicklouse wrote:set for each as you change.


Ewwwww. Really don't like that idea.... whilst it's not a major inconvenience... it's more than i'd like....

then run one set of wheels.


I like that even less.

May be ridiculous, but i use the Hopes for road/XC stuff running Aspens.
I use the Giants with Ardents for trailcentre stuff, the logic being that i don't want to bugger up my nice Hopes...


Trail centre is XC stuff isn't it?

How are you going to "bugger up" your hope wheels by using them at trail centres?

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weeksy59
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 14:05 pm

styxd wrote:
weeksy59 wrote:
nicklouse wrote:
weeksy59 wrote:
nicklouse wrote:set for each as you change.


Ewwwww. Really don't like that idea.... whilst it's not a major inconvenience... it's more than i'd like....

then run one set of wheels.


I like that even less.

May be ridiculous, but i use the Hopes for road/XC stuff running Aspens.
I use the Giants with Ardents for trailcentre stuff, the logic being that i don't want to bugger up my nice Hopes...


Trail centre is XC stuff isn't it?

How are you going to "bugger up" your hope wheels by using them at trail centres?



i'm fat :(

In all seriousness, different tyres for different rides... some days i'll ride in the mud... some days i'll just ride on the road... so different rubber for different conditions too

styxd
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby styxd » Mon Mar 11, 2013 14:10 pm

weeksy59 wrote:
styxd wrote:Just get a road bike ?


Bought one... used it 5 times.... sold it.... they're bloody rubbish.


They work alrite on the road.

Chunkers1980
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby Chunkers1980 » Mon Mar 11, 2013 14:17 pm

Or learn to adjust. You will be able to set the barrel to do all the adjustments, and about a turn or 2 of each of the limit screws.

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weeksy59
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby weeksy59 » Mon Mar 11, 2013 14:19 pm

Chunkers1980 wrote:Or learn to adjust. You will be able to set the barrel to do all the adjustments, and about a turn or 2 of each of the limit screws.


I know how to adjust it mate... i'd just rather not do it each and every time i swap. It could quite easily be 4-5 swaps a week deepending on weather/time/availablilty.

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cooldad
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby cooldad » Mon Mar 11, 2013 14:36 pm

Sometimes easier just to swap tyres.
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The Rookie
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby The Rookie » Mon Mar 11, 2013 14:50 pm

2 Choices really swap tyres or swap wheels with attendant isues on indexing.

It MAY be possible to tweak the spacers on one or other to move it, but not having looked inside either I've no idea.

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cooldad
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby cooldad » Mon Mar 11, 2013 14:53 pm

Indexing and often brake caliper adjustment
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Chunkers1980
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby Chunkers1980 » Mon Mar 11, 2013 14:57 pm

And chain wear issues.

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mrmonkfinger
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Re: Wheel/hub offeset... minor techincal alignmenent issue.

Postby mrmonkfinger » Mon Mar 11, 2013 15:57 pm

The answer's obvious. Throw the giant wheels, purchase another set of Hopes.


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