Road stem clamp diameter?

[Gooserider]

I recently ordered a new Gunnar Sport frame and I'm hunting for parts. The
bike has a 1 1/8 threadless steerer, and I'm wanting to put a randonneur bar
on it. Nitto makes a nice one, and it's affordable, but it's 25.4mm clamp
diameter. I've never used threadless stems before, so I'm unclear if I'll
need the Nitto shim with a threadless stem or not.

Mike

 

[JeffWills]

Gooserider wrote:
> I recently ordered a new Gunnar Sport frame and I'm hunting for
parts. The
> bike has a 1 1/8 threadless steerer, and I'm wanting to put a
randonneur bar
> on it. Nitto makes a nice one, and it's affordable, but it's 25.4mm
clamp
> diameter. I've never used threadless stems before, so I'm unclear if
I'll
> need the Nitto shim with a threadless stem or not.
>
> Mike

25.4mm is the mountain bike standard, so you can use any "mountain
bike" threadless stem made since the beginning of time.

If you want to use a "road" stem, you'll need to use the shim to fit
those bars in the road-standard 26.0mm clamp.

Jeff

 

[Qui si parla Campagnolo]

Gooserider wrote:
> I recently ordered a new Gunnar Sport frame and I'm hunting for
parts. The
> bike has a 1 1/8 threadless steerer, and I'm wanting to put a
randonneur bar
> on it. Nitto makes a nice one, and it's affordable, but it's 25.4mm
clamp
> diameter. I've never used threadless stems before, so I'm unclear if
I'll
> need the Nitto shim with a threadless stem or not.
>
> Mike

Use any threadless mountain stem, like some from Ritchey. 25.4mm clamp.