MacRetro chat and rides thread

[jimo746]

Re: Re:

Any reservations about using a threaded steerer threadless? :?

I know it "shouldn't" be done, but I've done it before, and am currently in the same situation with some forks I fitted to my retro ride.
I'm going to fit an ahead stem onto a threaded steerer, hopefully a short term measure until I figure out a more permanent solution, I'm thinking the worst that could happen is that the stem might slip round under stress/a crash (not a bad thing in a crash as it might prevent something breaking). The stem won't pop off the top of the steerer as the star fangled nut, bolt, and topcap should hold it all together.

That's how I see it Anyway.

 

[RobMac]

Re: Re:

Will you be clamping the stem onto the threaded part?

Yeah it probably will do.

And Jim thanks for your thoughts on the matter.

 

[old_coyote_pedaller]

Re:

My thought is that it "should" be OK but I would be worried about the threads cut into steerer being stress risers with the Ahead stem creating leverage that wasn't there when used with a quill stem. The threaded part is supported by the top bearing nut and the load spread along the length of quill but used with an Ahead stem that support and load spread wouldn't be there. Now if the steerer was long enough to cut off the threaded part or there was just a short length of threads near top of stem that's a different story.

 

[RobMac]

Re:

Frame head tube 100mm
Fork steerer 180mm last 40mm threaded
H/S approx 40mm
Steam approx 40mm

TOTAL = Bang on :?

 

[firedfromthecircus]

Re: Re:

Any reservations about using a threaded steerer threadless? :?

I wouldn't do it.

You can take that for whatever you think it's worth.

 

[old_coyote_pedaller]

Re: Re:

Frame head tube 100mm
Fork steerer 180mm last 40mm threaded
H/S approx 40mm
Steam approx 40mm

TOTAL = Bang on :?

So where the bottom of clamp for stem is, is where the bottom of the threads are gonnae be if ma maffs is rite?

In that case naw, I'd be worried aboot ma teeth.

You could get a quill to Ahead converter and cut off the threaded bit of steerer so that converter is where the threads were that you were going to clamp stem onto.

 

[RobMac]

Re: Re:

Has some one lit a fire under the MacRetro section its been buzzin for about two days now and we've even had passers by sticking their heads in
Recently I've noticed days have gone by without a single post being made, why some time I'd post abuse, piss taking or bollox just to stimulate some activity in here.

Am lovin the vib thats goin on at the moment in fact its even spreading to Mac Towers here in sunny Leven
I'm being very creative ........................

 

[jimo746]

Re:

Continuing the fascinating discussion on steerer tubes ...

Anyone know someone with a lathe who could make me a steerer?

Similar to the 1" Pace threadless steerer, but with about 20mm of 1"1/8th at one end, and a groove for a circlip.
Shouldn't be too hard to make (obviously I'll get proper dimensions to work from).

 

[RobMac]

Re:

Jim its a pity Mikee's not on at the mo he could sort you out

 

[kaiser]

Re:

Jamie and Brian's rides have taken on a whole new level of cooperation

2016-07-08_08-55-17 by Bigbroondug, on Flickr