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Search: Posts Made By: Jonneh
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04-27-21, 12:54 PM
Replies: 29
Views: 2,548
Posted By Jonneh

Just to follow up on this, I went ahead with the...

Just to follow up on this, I went ahead with the mod, all went well, and the steerer has done some 4,000 miles since its surgery.

The technique's a keeper. Thanks DaveSSS for the walkthrough.
05-26-20, 01:25 PM
Replies: 5
Views: 375
Posted By Jonneh

My Ksyrium ES front wheel with the exact same...

My Ksyrium ES front wheel with the exact same problem will share a similar fate. I hope the girlfriend won't take it too badly—I'm not sure how I'd feel about receiving such crap ('fancy' though it...
02-20-20, 03:28 AM
Replies: 29
Views: 2,548
Posted By Jonneh

Oh. Not on my phone or either of two browsers on...

Oh. Not on my phone or either of two browsers on my PC. Never mind.

Good to know re the foam.
02-19-20, 04:43 PM
Replies: 29
Views: 2,548
Posted By Jonneh

Dave, would you mind reposting the image of your...

Dave, would you mind reposting the image of your epoxy compression plug? With your approval of my MS Paint mock-up, I think I have the right metal image, but just out of interest...

Also,...
02-19-20, 02:42 PM
Replies: 23
Views: 927
Posted By Jonneh

Don't do it. In a parallel universe in which...

Don't do it.

In a parallel universe in which clinchers came later, they would be branded 'modular' and be touted as better in every way apart from weight. The chronology is messed up in our...
02-19-20, 02:27 PM
Replies: 472
Views: 97,355
Posted By Jonneh

https://cimg8.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg8.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/img_20200219_153932_2badc282fd36f5844fe7ff13525f5e8a0cd52de7.jpg
...
02-19-20, 02:00 PM
Replies: 11
Views: 2,542
Posted By Jonneh

OP, you might want to see what you think of...

OP, you might want to see what you think of DaveSSS's method in this thread: https://www.bikeforums.net/bicycle-mechanics/1193593-compression-plug-oval-carbon-steerer.html. It would avoid the need...
02-19-20, 01:46 PM
Replies: 8
Views: 832
Posted By Jonneh

Thanks for the comments Andrew (and Wizard). I...

Thanks for the comments Andrew (and Wizard). I didn't see them in time for the bonding session, and although I did clean the surfaces well (sanding followed by acetone), I didn't apply the epoxy to...
02-14-20, 07:58 AM
Replies: 8
Views: 832
Posted By Jonneh

Good to see. Looks like I bought the right one...

Good to see. Looks like I bought the right one then, albeit not by coincidence (recommended by DaveSSS on here).

Great, I'm going to go for it, making sure to prepare the surfaces well (roughing...
02-14-20, 05:19 AM
Replies: 8
Views: 832
Posted By Jonneh

Which epoxy for bonding bolts?

I want to glue the washers on my WI Eno hub to my frame. The replaceable derailleur hanger closes off the dropout less than its closure on the non-drive side, resulting in the washer eating into the...
02-12-20, 05:40 AM
Replies: 4,837
Views: 608,326
Posted By Jonneh

Is bar-wrapping fear a thing? I'm young, but also...

Is bar-wrapping fear a thing? I'm young, but also pessimistic for the world.

Your job looks great btw.
02-11-20, 07:33 PM
Replies: 14
Views: 2,126
Posted By Jonneh

I don't know the Park Tools one, but don't get...

I don't know the Park Tools one, but don't get the IceToolz one. It's crap. Badly machined with a wonky pin.
02-10-20, 10:32 AM
Replies: 29
Views: 2,548
Posted By Jonneh

Excellent. That all sounds very clear. I...

Excellent. That all sounds very clear.

I make it about 20 mls that'll be required for a 50 mm section of 11 mm radius (without discounting the T nut and straw volume). Allowing 1.5 g/cm3 for the...
02-10-20, 09:46 AM
Replies: 29
Views: 2,548
Posted By Jonneh

Regarding long-axis alignment of the T nut, that...

Regarding long-axis alignment of the T nut, that could probably be got right by setting the epoxy in two stages: first, by filling the space above the foam until it's just high enough to contact the...
02-10-20, 09:27 AM
Replies: 29
Views: 2,548
Posted By Jonneh

Great, I'm convinced! :) The maximum...

Great, I'm convinced! :)

The maximum external diameter is 1-1/8". Because of the ovality and thick walls, the minimum internal diameter is a fair bit less. I can measure it later.

Just to check...
02-10-20, 09:02 AM
Replies: 29
Views: 2,548
Posted By Jonneh

I see, sounds good. I took it for granted that...

I see, sounds good. I took it for granted that the epoxy wouldn't serve a structural funcion, and was rather there just to hold the tee nut (and therefore just for bearing preloading purposes), but...
02-10-20, 08:51 AM
Replies: 29
Views: 2,548
Posted By Jonneh

In principle it's supposed to fit with ZS44/28.6...

In principle it's supposed to fit with ZS44/28.6 ZS56/40(36°) bearings. Because of weirdities with the integrated crown race, I'm using a custom-machined shim to have the correct spacing between the...
02-10-20, 02:52 AM
Replies: 29
Views: 2,548
Posted By Jonneh

I take this (albeit in other words) to be a...

I take this (albeit in other words) to be a conclusion about a required function of the plug being to resist crushing forces then?
02-09-20, 05:01 PM
Replies: 29
Views: 2,548
Posted By Jonneh

What's the relevance? Lots of oval steerers on...

What's the relevance? Lots of oval steerers on used frames or what?
02-09-20, 02:30 PM
Replies: 29
Views: 2,548
Posted By Jonneh

Thanks to your homemade modifications, or just as...

Thanks to your homemade modifications, or just as it is? In the latter case I could just use a standard compression plug while preloading the bearings, then clamp on the stem and remove the plug. I'd...
02-09-20, 11:33 AM
Replies: 29
Views: 2,548
Posted By Jonneh

Fine by me if it'll serve the purpose. A lot...

Fine by me if it'll serve the purpose.

A lot depends on whether the function of the compression plug is just to get a grip while the headset bearings are preloaded, or whether it's to resist...
02-09-20, 10:03 AM
Replies: 29
Views: 2,548
Posted By Jonneh

Compression plug for oval carbon steerer

I've picked up a fork from a Trek Madone 9-series to install in my Cube frame, but it's missing its expander/compression plug. And one idiosyncracy of this fork (along with others!) is its non-round...
02-08-20, 08:58 AM
Replies: 4,837
Views: 608,326
Posted By Jonneh

I'm setting up my Cube as a lightish fixed...

I'm setting up my Cube as a lightish fixed hill-climber (Brit here). My normal build isn't particularly light - stiffness and strength matters to me because of how I ride. But stripping it down for...
02-06-20, 04:56 PM
Replies: 13
Views: 500
Posted By Jonneh

Interesting, and good for this cyclist to know!

Interesting, and good for this cyclist to know!
02-06-20, 11:50 AM
Replies: 24
Views: 2,254
Posted By Jonneh

Yeah, I think it could too. I redid the...

Yeah, I think it could too. I redid the calculations and 1.5 to 2 mm should be enough. Really, as long as the fork steerer is well secured, at worst the shim could result in uneven wear of the...
02-06-20, 10:41 AM
Replies: 24
Views: 2,254
Posted By Jonneh

I haven't, but I've been in touch with the guy...

I haven't, but I've been in touch with the guy who made the shim, and he said that he was (and that they don't make a taller bearing).



Thanks :). Although we don't have a solution yet, your...
02-06-20, 08:07 AM
Replies: 24
Views: 2,254
Posted By Jonneh

For better or worse, I'm afraid it's not in my...

For better or worse, I'm afraid it's not in my nature not to find a fix for this. As it stands, I accept that the fork is not 'compatible', but that doesn't mean that it never will be. 'The...
02-05-20, 06:42 PM
Replies: 24
Views: 2,254
Posted By Jonneh

The steerer tubes are the same: 1 1/8 inch to 1...

The steerer tubes are the same: 1 1/8 inch to 1 1/2 inch tapers. The Easton (old) fork has a flat crown with a separate race, whereas the Trek fork has an integrated race. The most recent two photos...
02-05-20, 06:15 PM
Replies: 24
Views: 2,254
Posted By Jonneh

Well, if that's the case it's definitely good to...

Well, if that's the case it's definitely good to know. What doesn't square in my mind is that the bearing gives a perfect fit with the original fork.

In any case, this would imply that I need a...
02-05-20, 12:28 PM
Replies: 24
Views: 2,254
Posted By Jonneh

It is slighty recessed, by perhaps 2 mm.

It is slighty recessed, by perhaps 2 mm.
02-05-20, 12:17 PM
Replies: 24
Views: 2,254
Posted By Jonneh

I did, and that's when the Trek fork crown rubbed...

I did, and that's when the Trek fork crown rubbed on the frame.
02-05-20, 12:05 PM
Replies: 24
Views: 2,254
Posted By Jonneh

As a matter of course, I triple-measured before I...

As a matter of course, I triple-measured before I came here to bother you guys. And I didn't buy the bearings separately; they came with the frame and old fork.

Everything checks out. 40 mm OD on...
02-05-20, 11:29 AM
Replies: 24
Views: 2,254
Posted By Jonneh

1) Done 2) Done 3) Apparently I already have...

1) Done
2) Done
3) Apparently I already have them
4) Doesn't fit
02-05-20, 11:20 AM
Replies: 24
Views: 2,254
Posted By Jonneh

I found this guy with almost the exact same...

I found this guy with almost the exact same problem: https://bicycles.stackexchange.com/questions/52546/a-shim-between-bottom-headset-cup-and-bearing. He ended up making a shim, which apparently...
02-05-20, 07:54 AM
Replies: 24
Views: 2,254
Posted By Jonneh

Looking at the clearance from the crown for the...

Looking at the clearance from the crown for the Easton fork with its race installed (first photo) and Trek fork (second photo), it seems that the mm or two difference would be eliminated with a...
02-05-20, 07:33 AM
Replies: 24
Views: 2,254
Posted By Jonneh

I gave it another go, and without the Easton fork...

I gave it another go, and without the Easton fork race (first photo) the fork crown rubs against the bottom of the headtube. With the race installed (which sits as shown in the second photo here,...
02-05-20, 05:51 AM
Replies: 13
Views: 500
Posted By Jonneh

Assuming by 'shorter' you're referring to trail,...

Assuming by 'shorter' you're referring to trail, it is indeed faster (more nippy) at low speeds, but also less stable at high speeds. Of course, 'good' handling is about being at the Goldilocks point...
02-05-20, 04:17 AM
Replies: 13
Views: 500
Posted By Jonneh

The quick answer is that for the same fork length...

The quick answer is that for the same fork length (and therefore same headtube angle), the reduced offset will increase the trail and slow down the handling. The Quick 6 you link to already has a...
02-04-20, 05:24 PM
Replies: 24
Views: 2,254
Posted By Jonneh

Hmm. Once I've entered in 30 mm as the ID of the...

Hmm. Once I've entered in 30 mm as the ID of the upper cartridge, the widget baulks at the 40 mm ID of the lower cartridge (it only wants 30 mm as the lower cartridge ID). Not sure why, but that's...
02-04-20, 04:25 PM
Replies: 24
Views: 2,254
Posted By Jonneh

Headset bearing cartridge/crown race compatibilities

Okay, so after becoming intimately acquainted with first bottom bracket standards, and then bits and pieces from the drivetrain, it's now time for some headsetting. I'm new to this part of the bike,...
02-03-20, 03:37 AM
Replies: 1
Views: 562
Posted By Jonneh

There are lots of good choices out there (don't...

There are lots of good choices out there (don't forget stiffness as an important factor too, especially if you're going to be riding with significant power). Keep in mind their compatibility with...
02-02-20, 07:06 PM
Replies: 4
Views: 617
Posted By Jonneh

Hmm, so I paid insufficient heed to chain length...

Hmm, so I paid insufficient heed to chain length and the amount of play the Eno was able to take up (its range is limited by wheel clearance on the seat tube). Looks like a 42T ring with the 18T cog...
02-02-20, 03:40 PM
Replies: 4
Views: 617
Posted By Jonneh

Oh, I like where this is going. Very much sow's...

Oh, I like where this is going. Very much sow's ear -> silk purse (in the good sense).

I have at my disposal 17 and 18T cogs and the 16T freewheel, and 39, 46 and 53T chainrings. My favoured gear...
02-02-20, 02:08 PM
Replies: 4
Views: 617
Posted By Jonneh

OK, I got some hard numbers to inject into the...

OK, I got some hard numbers to inject into the situation, and they are as follows:

The chainring spacing with the ring on the outside of the crank spider, as I usually have it (for riding...
02-02-20, 11:51 AM
Replies: 4
Views: 617
Posted By Jonneh

WI Eno hub spacing (freewheel vs fixed)

​I'm having a bit of a head-scratcher here, to the point that I'm sure I must be missing something embarrassingly obvious. I recently set my bike up with a White Industries Eno hub on a road bike...
09-14-18, 03:46 AM
Replies: 6
Views: 503
Posted By Jonneh

Hmm, so I went ahead and removed a link. All's...

Hmm, so I went ahead and removed a link. All's well now with the rear brake - that was more than enough to offset those 4mm. On the other hand, the bolts have moved exactly half an inch forward in...
09-14-18, 03:12 AM
Replies: 6
Views: 503
Posted By Jonneh

Thanks for the rule of thumb Broctoon....

Thanks for the rule of thumb Broctoon. Intuitively, I thought the movement would be more than that. As far I intuit, it should be one pitch (1/2 an inch) of axle movement per link removed for a cog...
09-13-18, 05:04 PM
Replies: 6
Views: 503
Posted By Jonneh

Rear brake tyre rubbing

So I've set up my singlespeed with a rear brake (Shimano 105), alongside the front brake it already had. The trouble is, even when the brake shoes are positioned at the end of their range, the pads...
06-19-18, 04:36 AM
Replies: 23
Views: 4,708
Posted By Jonneh

Thanks Broctoon. Just to clear things up,...

Thanks Broctoon.

Just to clear things up, what followed TT's comment about 54T rings being for impressing the ladies was all a joke. ‎I thought it might be obvious given that I'd been talking...
06-18-18, 02:18 PM
Replies: 23
Views: 4,708
Posted By Jonneh

Thanks TT for the helpful information. I'll look...

Thanks TT for the helpful information. I'll look into the difference in cog sizes compatible with that eccentric hub - I'd quite like to just adapt my road bike frame with its vertical dropouts. Then...
Showing results 1 to 50 of 55
 


 
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