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Old 11-18-07, 12:23 AM   #1
K_phomma
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Possible for 29" wheel on frame that had 26"?

So, with me getting a new bike (yay) I was thinking about modifying my old bike (generic Falcon bike) to a fixed gear for the winter time. So like I wrote, is it possible to install a 29" wheel on a frame that used to hold 26" wheels?
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Old 11-18-07, 02:12 AM   #2
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No.
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Old 11-18-07, 06:29 AM   #3
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Sure, you can do it.... If want to spend enough money.
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Old 11-18-07, 06:41 AM   #4
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Yes if the bike is set up for cantis is is quite possiable to do it. If fact there are a number of budget home made cross bikes built up this way. If you have enough clearence on th for so the whell dosent hit you will need a set of old school adjustable brakes. I used a set of Onzo's purchessed off of ebay.
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Old 11-18-07, 06:51 AM   #5
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^^^

How will there be enough clearance for a 29" (700c) rim and tire in a frame designed for 26" rims, let alone getting the brakes to hit the rims properly?

EDIT: I assume that the OP is trying to save money while doing this, and in fact it will probably cost quite a lot. Here's is a FAQ I found on it from another forum.

http://forums.mtbr.com/showthread.php?t=232425
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Old 11-18-07, 06:57 AM   #6
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Quote:
Originally Posted by K_phomma View Post
So, with me getting a new bike (yay) I was thinking about modifying my old bike (generic Falcon bike) to a fixed gear for the winter time. So like I wrote, is it possible to install a 29" wheel on a frame that used to hold 26" wheels?
You may be able to but only thinner road rims/tyres would fit - I think you can shoe horn a 700x23c (29x0.9) into a 26" rigid fork. I'm not sure if you'd have enough clearance at the rear though.

edit: ...and as someone else pointed out, unless you're running disc or hub brakes your rim brakes may not line up.
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Old 11-18-07, 08:24 AM   #7
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The Onzo Brakes alow the pad to be adjusted up and down a shaft, they were used in the early day of mt biking, when some companys were converting touring type bikes with 27 inch wheels in to 26 inch mt bikes. They used to show up on ebay all the time, but I have not seen a pair lately.
An old school rigid mt bike frames will take a 700x 32 in the back with plenty of clearence as will a rigid mt fork will also take on. The one you have may not. I do know that a suspension fork will not take that tire size.

As the OP said he was looking fixed gear so for him brakes are not an isue. The easy way to figure out if it would work would be to borrow a set of cross whell from some one and see if your frame would take them.

Also you do have to consider the hub spacing of your rear wheel.
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Old 11-18-07, 11:18 AM   #8
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^^^

How will there be enough clearance for a 29" (700c) rim and tire in a frame designed for 26" rims, let alone getting the brakes to hit the rims properly?
Depends on the frame. I can take the 700 x 42 wheel tire combination off my CrossCheck ad easily fit it on my 1x1 with room to spare. Not so with my XO-3, but I can get a 700 with a skinny tire in there.

Brakes aren't so much an issue if this is a MTB conversion with a low gearing.
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Old 11-18-07, 11:36 AM   #9
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Depends on the frame. I can take the 700 x 42 wheel tire combination off my CrossCheck ad easily fit it on my 1x1 with room to spare. Not so with my XO-3, but I can get a 700 with a skinny tire in there.

Brakes aren't so much an issue if this is a MTB conversion with a low gearing.
It seems to me that he wants knobbies due to the 29er reference. Either way, brakes are a good idea especially in winter.
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Old 11-18-07, 11:42 AM   #10
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It seems to me that he wants knobbies due to the 29er reference. Either way, brakes are a good idea especially in winter.
If he's got a disc brake set up he'd be golden.

I rode my 1x1 as a winter fixie for several years without a brake. At 32/18 it was almost impossible to get going fast enough to be of any consequence.
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Old 11-18-07, 01:41 PM   #11
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What makes a 29er a 29er is generally considered to be a 622mm bead seat diameter rim outfitted with a tire that's at least 2" wide (approx. 50mm). So if you're really talking about putting what's considered to be a 29er wheel on your bike designed for 26" mtb wheels, the answer is almost certainly "no." If you're talking about skinnier tires on a 622 rim (700c), then it might be do-able if you have a brake setup that will allow it.
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Old 11-18-07, 02:15 PM   #12
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If he's got a disc brake set up he'd be golden.

I rode my 1x1 as a winter fixie for several years without a brake. At 32/18 it was almost impossible to get going fast enough to be of any consequence.
Wow, that's certainly something I would want to do, but if the roads are plowed I guess it's possible.
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