Pace 1" stem steerer conundrum

[Stick Legs]

Shame to loose the mavic headset and increace the bar / saddle drop.

There are engineering solutions, including of course cutting the steerer and adding length.

But I though what if you pushed a star washer into the steerer about 2" down, machine a steel plug to fit inside with a hole drilled through the middle and secure it.
This would give you the required contact area, stop the problem of not trusting the set up, reduce the forces on the Pace crown, leave the Pace steerer intact.

As the 'joint' is halfway up the crown the whole forces are not taken by an M5 bolt either.

Anyone who is 'good' with a lathe could knock this up as well.

 

[danson67]

Re:

The Pace steerers have their own M6 threaded fitting already brazed into the lower end, so there's no access to fit a starnut up inside.

Could just machine up a 1" diameter short plug to make up the difference in length...effectively a thick washer, and bolt through into the original fitting.

However, this approach still leaves some stress risers at the joint between steerer and plug.
Better to weld an extension to make the steerer into one rigid unit.
Shouldn't need to cut the steerer, maybe just to clear any brazing remnants.

All the best,

 

[Stick Legs]

Re: Re:

The Pace steerers have their own M6 threaded fitting already brazed into the lower end, so there's no access to fit a status up inside.

Ahh I wasn't aware of that. Thanks.