27 to 700?

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02-23-07 | 07:50 AM

#26

Aeroplane

jack of one or two trades

Joined: Jun 2005

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From: Suburbia, CT

Bikes: Old-ass gearie hardtail MTB, fix-converted Centurion LeMans commuter, SS hardtail monster MTB

Quote:

Originally Posted by Retem

try it and tell me how your chopper feels mmk
it will effect handling in the way a raked fork would another one that is a bad idea is 650front and a 700 rear on a normal frame

Sorry dude, I've done both ways (27 rear, 700 front, and the reverse). You'd have to be some sort of Jean Grey mutant in order to sense the difference.

02-23-07 | 08:43 AM

#27

Wotan

#$*&

Joined: Aug 2006

Posts: 411

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From: Melbourne, Aus

Bikes: Bates (of Coburg) track bike(60s/70s?), Malvern Star Ladies coronation (1953), SuperElliots pathracer (60s?), Repco pathracer (1964), Holland Ladies (50s?), Moa (50s?), Hillman Ladies (40s?), Batavia? (40s?), Malvern Star 2 star ladies (50s?)...etc.

My beater has a 27 front / 700c rear. Feels fine to me. In fact, it feels great!

02-23-07 | 08:49 AM

#28

mihlbach

Senior Member

Joined: Dec 2005

Posts: 6,656

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From: Long Island, NY

Quote:

Originally Posted by Aeroplane

Sorry dude, I've done both ways (27 rear, 700 front, and the reverse). You'd have to be some sort of Jean Grey mutant in order to sense the difference.

I tried that too and could sense the difference at first..sorta like getting on someone elses bike. But its so slight that it doesn't really matter and the feeling of it being slightly different goes away after a few blocks, so its basically irrelevant. I've used different size tires on my mountain bike and the difference there is similar, but again, it doesn't result in significant handling differences.

02-23-07 | 09:03 AM

#29

mwrobe1

Code Warrior

Joined: Jul 2006

Posts: 620

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From: South suburbs of Chicago, Illinois

Bikes: Schwinn MTB/Raleigh Marathon

I want to chime in on this thread, because, at some point I may convert from 27 to 700...

So...for clarification...

A 27" wheel is 630mm.
A 700c wheel is 622mm

8mm diameter difference. (5/16 of an inch)
4mm radial difference (or about a smidge over 1/8 of an inch)

So if I can drop my brake pads a smidge over 1/8 of an inch...I can make do this conversion easily.

Correct?

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02-23-07 | 09:39 AM

#30

mihlbach

Senior Member

Joined: Dec 2005

Posts: 6,656

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From: Long Island, NY

Quote:

Originally Posted by mwrobe1

If you can drop your pads 4mm you are set.

02-23-07 | 09:40 AM

#31

operator

cab horn

Joined: Jun 2004

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From: Toronto

Bikes: 1987 Bianchi Campione

Assuming your frame does not have ultra narrow clearances that is. Though pretty much any 27" frame will probably have whack loads of clearance.

02-23-07 | 01:09 PM

#32

jim-bob

hateful little monkey

Joined: May 2003

Posts: 5,274

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From: oakland, ca

I had no problem fitting 700x38 tires in a beat old nishiki designed around 27" wheels. I did, however, have to use a cheesy-ass BMX brake to reach the rims because the rusty universal centerpull just didn't have the reach.