24" Wheels On A Stock

[Greetings]

I'm thinking of temporarily going 24" and double disc on my bike, mainly in order to increase braking power and reduce wheel flex. Has anyone tried riding their stock on 24" wheels? Just wondering if it'll make any difference at all.

[matt rushton]

Would make the bike feel completey different. BB will feel lower, wheelbase will feel longer. ( I think so anyway)

[davey1991]

feels the same just lower, although i wouldnt suggest it, BB is far to close to the floor and you'll end up smacking your downtube and chainstays to death.

[manuel]

Martyn was telling me that is how the ET came about - he took his cannondale trials bike and stuffed 24" wheels in - had more fun on a bike than ever before - gave it to Eddie who agreed and it went into production ....

i would imagine it to be a bit gash for the modern 1090 + 40bb bikes though !!! but you could always try

[Luke Rainbird]

Jon (Quickspider) has the Heatsink Proto 24uk which is a 1080mm wheelbase, effectively a stock geo frame

Rides well from what I hear, and as with most things you'll get used to it with a little time

Provided you have the tyre clearance, do it (I was considering doing the same around the time you put your kiddie wheels on the adamant...)

edit;

[Greetings]

Cheers for the help, by the sound of things it could work rather well. Will look into this more thoroughly if we get too much snow this winter

[Ross McArthur]

Running discs will make the bike feel quite flexy compaired to a rim brake.

Martyn was telling me that is how the ET came about - he took his cannondale trials bike and stuffed 24" wheels in - had more fun on a bike than ever before - gave it to Eddie who agreed and it went into production ....

i would imagine it to be a bit gash for the modern 1090 + 40bb bikes though !!! but you could always try

I like that story.

[John Shrewsbury]

Martyn was telling me that is how the ET came about - he took his cannondale trials bike and stuffed 24" wheels in - had more fun on a bike than ever before - gave it to Eddie who agreed and it went into production ....

i would imagine it to be a bit gash for the modern 1090 + 40bb bikes though !!! but you could always try

Yeh i tested one of the prototypes which i cud put 26inch wheels on. Gd fun but the final design turned out alot better.

[Steve-A]

Whilst my 609 was broken, I rode a Pashley 26GHz ( one of the old short ones) with 24" wheels in. It felt a little odd, but really not too bad. Obviously I wasn't running a rear disk, so I had a maggie part bolted and part jubilee clipped on. I found it great for skate park stuff, having less BB rise than my 609 meant good for spins and bunny hops. Was more awkward on rear wheel but not by much. If you check here: Youtube Link FRom 10secs to 25secs was riding the GHz, and there one or two clips dotted later in the vid.

Black and white pic by FatMike

There were lines I did on that Pashley that I've not done since!

[Endohopper]

I think Mr.Heatsink experimented with 24" wheels in an obviously stock Base TA26 frame , although no indication on how it felt / rode . Looks pretty good , though .

[J Trials 31]

Would vee's be hard to setup with this type setup? I know maggies would be almost impossible.

[spaceman]

Would vee's be hard to setup with this type setup? I know maggies would be almost impossible.

Mr Heatsink managed to put maggy on his

Topic here: http://www.trials-forum.co.uk/forum/index....c=79304&hl=

[Fixed Pants™]

No difference to the ride, maybe a bit flickier because the weight is longer, but it'll ride exactly the same, as it's lowered proportionally, but will be lower.

[Jaffacakes]

Whilst my 609 was broken, I rode a Pashley 26GHz ( one of the old short ones) with 24" wheels in. It felt a little odd, but really not too bad. Obviously I wasn't running a rear disk, so I had a maggie part bolted and part jubilee clipped on. I found it great for skate park stuff, having less BB rise than my 609 meant good for spins and bunny hops. Was more awkward on rear wheel but not by much. If you check here: Youtube Link FRom 10secs to 25secs was riding the GHz, and there one or two clips dotted later in the vid.

Black and white pic by FatMike

There were lines I did on that Pashley that I've not done since!

Kudos for that bodge

[grant_hundley]

No difference to the ride, maybe a bit flickier because the weight is longer, but it'll ride exactly the same, as it's lowered proportionally, but will be lower.

Why aren't there any mods with +10 bb rise then?

[Fixed Pants™]

Erm?

Well probably because the cranks will hit the floor, especially easier if anything. And anyway, they did exist. Just not these days, as we've discovered higher bbs ride nicer on the back wheel.

Doesn't matter about wheelsize, it's all about where the axles are. Mofo.

[Luke Rainbird]

It will ride differently with smaller wheels

The BB will be lower (most 24" bikes run +25mm or so relative to a stock to make up for this)

Generally a 24" runs the same fork with a similar/higher rise bar/stem, so the added BB rise makes up the drop from the wheelsize

For all intents and purposes, it'll be fine - do it

[Fixed Pants™]

It will ride differently with smaller wheels

The BB will be lower (most 24" bikes run +25mm or so relative to a stock to make up for this)

Generally a 24" runs the same fork with a similar/higher rise bar/stem, so the added BB rise makes up the drop from the wheelsize

For all intents and purposes, it'll be fine - do it

It will be closer to the ground but the +/- won't change, at all.

[Luke Rainbird]

Yes, much like I said then! Ideally you need a bit more rise on a 24" than a 26".

Pants - if it makes no difference, why would BMX's run a risen BB as opposed to drop like on a street/dirt MTB, other than clearance?

[Greetings]

I think what he's saying is that smaller wheels just make the bike stand lower but the body position is exactly the same.

The reason for which rise varies depending on wheel size is an interesting one. It could be that the 90-100cm bar height is considered to give a good 'riding height' and therefore to retain the same position the average bb rise measured from the ground needs to be fairly similar on all frames. It'd be really odd if mods had 10mm rise and handlebars just above your knees.

Anyhow, going double disk soon, if a rear 8" Hope doesn't deliver enough braking power or the wheel is too flexy, I'll be switching to 24".

[grant_hundley]

Erm?

Well probably because the cranks will hit the floor, especially easier if anything. And anyway, they did exist. Just not these days, as we've discovered higher bbs ride nicer on the back wheel.

Doesn't matter about wheelsize, it's all about where the axles are. Mofo.

http://www.tartybikes.co.uk/product.php?pr...;category_id=70

BB Rise: 35mm (approximately equivalent to 10mm rise on a 26" bike)

[Fixed Pants™]

Grant, where is a wheelbase measured from? Axle to axle.

Where is the BB rise measured from? Axle to axle to bb.

Where are the chainstays measured from? Axle to BB.

Hmm, i'm wondering if the axles are the important thing here?

Just listen to me, a 26" wheel bike with +30 bb rise will still have +30 bb rise with 12" wheels. It's all about where the axles (the pivoting point) is.

Tarty are giving you a comparison for BB to FLOOR height, not BB rise in respect to the AXLES.

Edited November 24, 2008 by Fixed Pants™

[grant_hundley]

Inspireds don't ride like they have +35 bb rise...

Also, Steve has said he's tried it and noticed a difference.

That's from personal experience rather than just thinking about it..

[Fixed Pants™]

Inspireds don't ride like they have +35 bb rise...

Also, Steve has said he's tried it and noticed a difference.

That's from personal experience rather than just thinking about it..

Why would it ride differently when the geo is kept the exact same?

[J Trials 31]

Does Mr. Heatsink still have that Base? I'm interested in doing something a lot like it. So I might just buy it off him or something. Would it still be a trials doable bike? Or will some things be harder to ride?