Pace RC 35

[MattD]

I have an old Pace RC35 fork currently with a threaded 1” steerer tube.

Is it possible to take this out and replace it with a threaded 1/18 tube?

I’m wanting to use it on a larger head tube on one of my builds.

Thanks Matt

 

[Mod-Master]

I have an old Pace RC35 fork currently with a threaded 1” steerer tube.

Is it possible to take this out and replace it with a threaded 1/18 tube?

I’m wanting to use it on a larger head tube on one of my builds.

Thanks Matt

Does said crown have a 1 1/8” to 1” steerer shim in it? If it’s just steerer to crown then no, you won’t I’m afraid.

 

[fettler]

Without having to take anything apart, if your fork crown is flat across the front and back it's a 1". You will need a different crown. If the crown has a bulge across the front and back face then it's for either a 1 1/8" or 1 1/4" steerer so you will just need a steerer and maybe adaptor if it's 1 1/4". Might be worth listing a wanted/swap listing as someone will want your old stuff.

 

[mk one]

Like above, depends on which crown you currently have.

 

[ishaw]

I could be wrong here, but I'm not 100% sure that a bulged crown means 1 1/8. There are various rc35s, the original, AB, then the mx range.

My memory is hazy having not had any for a while, but the easiest way to tell without taking anything apart much is to remove the headset crown race and see what's underneath. Iirc, if your 1 inch steerer is shimmed at the crown, you'll see an amount of the shim sticking out which is to allow a 1 1/8 headset crown race to be seated over it.

Here's a link that might help

https://www.retrobike.co.uk/threads/newbie-confused-pace-shim-and-crown-race.415869/