1" fork in 1 1/8th headtube?

[NicksGarage]

If I want to run a one inch threaded fork in a frame made for a 1 1/8" threadless fork would you use something like these reducers?

http://www.danscomp.com/309031.php?cat=PARTS#

Or is there a headset that reduces?

 

[alecw35]

I got an Alloy Y frame, it had headset cups in it, but no forks. I fitted 1" threaded forks in there. Using bearing clips and top bearing cap bit that was in my box of bits. And the lower cone bit that was on the forks. It seemed to work. No rocking.
But I didn't get round to riding it.
I decided to try another set of forks, wanted a chrome headset to match the polished alloy. But the 1" chrome headset cups don't fit. As its a 1 1/8" frame, I hadn't measured it. Now got a set of forks in there with an 1 1/8" aheadset.

So if you've got a lot of headset parts. try mixing up the cups and cones.
I think some BMXs used a larger diameter headstock, with a 1" steerer tube and 3/4"...21.1mm quill stem. So maybe try BMX parts

 

[user 135]

These reducers are a little nicer. http://www.choppersus.com/store/product/635/Headtube-Reducer-1-1-8-to-1"/

Headset- not too many.
Chris King$$$$ http://chrisking.com/headsets/hds_devo

 

[NicksGarage]

These reducers are a little nicer. http://www.choppersus.com/store/product/635/Headtube-Reducer-1-1-8-to-1"/

Headset- not too many.
Chris King$$$$ http://chrisking.com/headsets/hds_devo

Thanks for the reply. Looks like the Chris King parts are still only for threadless forks. I would like to find some silver reducers but I guess for now I can use black ones to mock up the bike.

 

[user 135]

Those are probably anodized aluminum. It can be removed. Some use oven cleaner and others use Lye.
http://bmxmuseum.com/forums/viewtopic.php?pid=303218

 

[NicksGarage]

Those are probably anodized aluminum. It can be removed. Some use oven cleaner and others use Lye.
http://bmxmuseum.com/forums/viewtopic.php?pid=303218

Yes, I just hope removing it doesn't affect the fit. Maybe I just polish the top and sides. I ordered a pair and when my frame arrives, I'll give it a shot.

 

[user 135]

Let us know how it works.

 

[gcrank1]

My understanding is that anodizing adds no appreciable thickness to the surface

 

[mikeeebikey]

Anodized parts have a slightly harder surface. Basically it seals the surface.

The adapter the op posted is to run 1" headless fork in a 1 1/8" headset.

For a 1 1/8" to 1" threaded there is a couple options.

 

[NicksGarage]

I ordered as set of the ones like at Choppersus. They are for reducing from 34mm to 30.2mm to fit the 1" headset. Danscomp was out of the silver split ones.

I'm also going to go to the LBS over the weekend if I get a chance to see what they have.

 

[NicksGarage]

I got the fork mounted. Had to use 30mm cups to fit but everything works well.

 

[mikeeebikey]

very nice, thanks for posting your results.