Hi, I’m currently building a budget full susser, using an excellent Prophet frame (18″ and sourced here at STW) and got a deal on a set of Rock shox revelations, but they are tapered.

The Prophet is currently set for a straight steerer.

My newbie question is what have I got to purchase and then fit to be able to fit the new tapered forks ?

thanks

gonna need a hed-stretcher.

gonna need a hed-stretcher.

Nah, prophets have a lefty / headshock-compatible 1.5″ head tube. So, I suspect you need some sort of reducing top headset?

Perhaps google is your friend?

You can get Hope top & bottom cups to suit, can’t remember which ones but sure someone will be along to say.

Definitive guide: Cannondale frame headset fork compatibility for mountain bikes

thanks guys, will look into getting a “headset reducer”, or the Hope top & bottom cups to suit.

Thanks for the web link, had a look – and can’t say I’m much the wiser, tons of info there, but couldn’t make out what it is I need ? Most likely me.

Is the current headset for 1 1/8″ straight steerer or 1.5″ straight?

Hi Simon

Have just checked and it is set up at the moment for a straight 1 1/8th steerer.

In that case you can use the existing upper headset and replace the lower one with a 1.5″ cup and bearing
I think a Hope F cup 1.5 traditional (EC49/40) should do it.

http://www.merlincycles.com/hope-pick-n-mix-headset-cups-55430.html?utm_campaign=googlebase-GB&utm_source=googlebase&utm_medium=shopping&utm_term=Headsets&ucpo=15458&gclid=CjwKEAiAv7ajBRCIldS7rp7wzFkSJAAA1n4DW9Zp2AxmBWdXqJi8Z22WjyBlur8KqyHODes1zkBj6RoCloPw_wcB

thanks Simon, that makes sense. Ordered.

Now going to google how to install…

You’ll probably be knocking out the existing Cannondale reducer lump and replacing it with something much nicer. It will be shallower so I’d check for fork top/downtube clearance. Not the end of the world, but best to know before you ride it.