Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby pushbikerider on Sun 4/Mar/12 9:21pm

Derryn Hinch wrote:thx, I think. Struggling to find one anywhere on the web now :(

Is there any point in filing off the burrs on the current chainring?


unless you scour some of the retro forums, or a careful e-bay search I don't think you will find what you are looking for on-line

it may well be worth taking to the current granny with a file, especially if its steel
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Derryn Hinch on Sun 4/Mar/12 9:32pm

'tis steel so I'll try that. Thanks for the help
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby XCrazy on Sun 4/Mar/12 9:56pm

Derryn Hinch wrote:Does anyone know where in NZ I can get a 58mm BCD 22 tooth 4 bolt chainring for 9 speed? It is for an old (1998) Sugino MTB crank.

All the 22t chainrings can find online are 64mm BCD.


http://www.starbike.com/php/suchen.php? ... ainring+58
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Oli on Sun 4/Mar/12 10:33pm

XCrazy wrote:
Derryn Hinch wrote:Does anyone know where in NZ I can get a 58mm BCD 22 tooth 4 bolt chainring for 9 speed? It is for an old (1998) Sugino MTB crank.

All the 22t chainrings can find online are 64mm BCD.


http://www.starbike.com/p/Specialites-T ... 06-en#3140
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Simonius_Titius on Sun 4/Mar/12 11:27pm

Derryn Hinch wrote:Does anyone know where in NZ I can get a 58mm BCD 22 tooth 4 bolt chainring for 9 speed?
It is for an old (1998) Sugino MTB crank.

All the 22t chainrings I can find online are 64mm BCD.


This kind of Sugino 4-bolt 58mm BCD crank? :sly:

FC-Sugino Impulse BCD 94-58mm.jpg



Here is a genuine 4-bolt 104/58mm BCD, Surly used one too.

FC 104-58mm  BCD 4 bolt.jpg


SJS has a 4-bolt 58mm Sugino ring, or a whole steel set for not much more.
http://www.sjscycles.co.uk/obsolete-obs ... pt514_pg1/


58mm has traditionally been a 5-bolt pattern, Sugino hide one bolt behind the arm.
Also RaceFace made 94/58mm 5-bolt rings, and Middleburn, TA, Coda (rebranded).

There have been steel 22T 5-bolt rings on Tardme recently, and 32T steel middles pop up occasionally.
Token aluminium 22T 5 bolt are around on special at $15. They are very light, dunno how durable.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Derryn Hinch on Mon 5/Mar/12 9:18am

It's proper 4 bolt like the Surly (lower) image.

I had found the SJS link. The starbike link are all 5 bolt ones.
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby iride2 on Mon 5/Mar/12 11:23am

IS there anyway at all to fit a 1.5 steerer into a bike with a 1 1/8 setup? (headset with super slim or external bearings)
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby pushbikerider on Mon 5/Mar/12 12:20pm

iride2 wrote:IS there anyway at all to fit a 1.5 steerer into a bike with a 1 1/8 setup? (headset with super slim or external bearings)


in short no,

1 1.5" steerer is approx 38.1mm diameter, a traditional 1 1/8 heatube is 34mm diameter
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby dented on Mon 5/Mar/12 1:24pm

pushbikerider wrote:
iride2 wrote:IS there anyway at all to fit a 1.5 steerer into a bike with a 1 1/8 setup? (headset with super slim or external bearings)


in short no,

1 1.5" steerer is approx 38.1mm diameter, a traditional 1 1/8 heatube is 34mm diameter

Surely you could get up in there with a 1/2 round coarse bastard?
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby danose on Mon 5/Mar/12 1:26pm

dented wrote:
pushbikerider wrote:
iride2 wrote:IS there anyway at all to fit a 1.5 steerer into a bike with a 1 1/8 setup? (headset with super slim or external bearings)


in short no,

1 1.5" steerer is approx 38.1mm diameter, a traditional 1 1/8 heatube is 34mm diameter

Surely you could get up in there with a 1/2 round coarse bastard?


maybe machine the steerer down as well - I'm sure it doesn't really need to be that thick

if you get the clearances right you could just fit a couple of grease nipples and do away with the headset bearings too
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby dented on Mon 5/Mar/12 1:36pm

Now you're talking! :thumbsup:
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby Wobbler on Mon 5/Mar/12 1:48pm

Why worry about grease nipples? Just put some duct tape over the holes
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby northernmonkey on Mon 5/Mar/12 2:10pm

I've just stuck some cheapo SH Deus cranks on my SS (xtype) but the drive side comes loose easily, anything that can be done to stop it other than sticking a load of red loctite on...? Its all fitter according to the manufacturers instructions. Its on an Orange p7 with a 68mm shell...

ta
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby shmoodiver on Mon 5/Mar/12 3:00pm

lop a bit off the end of the spline
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Re: Bike Mechanics Impart Their Wisdom On Vorb

Postby el_booto on Mon 5/Mar/12 4:08pm

is the extractor cap locked down

i have had the same issue with evolves, cranking down the extractor cap does help

as does loctite...
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