Mountain bike stem size

short circuit

Hi Guys, Getting a handlebar from Mayan with 25.4mm clamp for the stem. I thought this would be standard mountain bike size.

But as I go looking at websites, i am finding 25.8, 26mm and 31.8 ..... but very very few 25.4mm

Will the 25.4bars just fit in a 25.8 or a 26 .... Does the 0.6mm really make a difference ...

I am looking for a high rise stem ... 100 or 110mm length ... 35 degree or even more raise. Suggestions welcome.

The bars I am getting are Midge bars and it is recommended to get it a couple of cms higher than the drop bars and closer as well.

Thanks, SC

By the way, if it doesn't say clamp size under the mountain bike stem category, does it mean 25.4mm by default

petethedrummer

There are pages of MTB stems on chain reactions! A few of them are 25.4mm.

http://www.chainreactioncycles.com/Categories.aspx?CategoryID=685

short circuit

petethedrummer wrote: »

There are pages of MTB stems on chain reactions! A few of them are 25.4mm.

http://www.chainreactioncycles.com/Categories.aspx?CategoryID=685

Thank you sir .. CRC, Wiggle already checked out ... nothing for the the length and rise I want ... but it seems a lot of MTB bars are also moving to 31.8 clamp size ... the oversized just seems to be more common now.

Does any stem which does not specify a size in the MTB section default to 25.4?

More importantly, finally found loads in SJS in teh right size ... anyone putting in an order there and want to share shipping costs ..

Morgan

25.4mm = standard mtb
26.0 = standard road
31.8 = oversized mtb and road

You shouldn't really have a problem finding a standard sized mtb stem. What size are you looking for?

short circuit

Morgan wrote: »

25.4mm = standard mtb
26.0 = standard road
31.8 = oversized mtb and road

You shouldn't really have a problem finding a standard sized mtb stem. What size are you looking for?

100 or 110mm length ... 35 degree or even more raise

petethedrummer

http://www.bunneysbikes.com/products/BBB-Highrise-Ahead-Stem-Alloy,-25.4mm-Diameter-x-35-Degree-Rise.html

Since its BBB there's a good chance a LBS could have it or get it in.

petethedrummer

Also for anyone that's interested:


http://www.habcycles.com/fitting.html

seanhunt

I change between a 40mm and a 100mm depending on what I'm at, don't know much about the science involved but shorter stem generally works for a more comfortable casual ride yet very very sensitive steering, longer stem is nicer when theres a lot climbing involved and control needed but hurts my neck on the flats/downhills, but thats what works for me, everyone different etc! Pretty huge difference between the two.

short circuit

Thanks for that ... been there .. done that .. when I said 100-110mm length and 35-40degree rise, it has all been calculated in excel ... of course I didn't get a nice looking graph like below, but the size I asked for is not pulled out of thin air.:). Its based on what I am riding now and where I want to position my new bars.

petethedrummer wrote: »

Also for anyone that's interested:


http://www.habcycles.com/fitting.html

Gavin

petethedrummer wrote: »

Also for anyone that's interested:

Goodness me, that image is bordering on the obscene

Morgan

A 35°+ stem will look a bit goofy and not at all rad.

Would you consider a riser bar?

petethedrummer

Gavin wrote: »

Goodness me, that image is bordering on the obscene

As filthy minded as I am, I never noticed the phallic undertones.

Sorry for posting this filth.