Search found 22 matches

by Cyckelgalen
4 Apr 2020, 4:53pm
Forum: Bikes & Bits – Technical section
Topic: Spokes; choosing between the 'Big Three'
Replies: 15
Views: 825

Re: Spokes; choosing between the 'Big Three'

Eyeletted rims should be the ideal solution prevent rim fracture at the spoke holes, but they seem to be less common. Ryde Sputnik are a good example. I had no idea that rim washers were more prevalent years ago, but it makes sense, they were easy to use with single wall rim at the time, now you wou...
by Cyckelgalen
4 Apr 2020, 11:50am
Forum: Bikes & Bits – Technical section
Topic: Spokes; choosing between the 'Big Three'
Replies: 15
Views: 825

Re: Spokes; choosing between the 'Big Three'

Speaking of spoke washers, are there any benefits to using washers at the other end? Between nipple and rim that is. Sapim make oval washers to fit snugly into the rim. Why would they be needed at all?
by Cyckelgalen
19 Mar 2020, 8:05pm
Forum: Bikes & Bits – Technical section
Topic: Rim Wear
Replies: 24
Views: 1041

Re: Rim Wear

Dutch Ryde, formerly Rigida, produce some of the strongest (and heavy) rims for rim brakes. IIRC some of the Ryde Andra series, the Andra 30 and 40 are above 2 mm.
by Cyckelgalen
12 Mar 2020, 1:18am
Forum: Bikes & Bits – Technical section
Topic: Right side cone locking
Replies: 4
Views: 499

Re: Right side cone locking

The few occasions when I had a cone working itself loose from the locknut have always been on the RHS of the front hub. I assumed it had to do with the threading of the axel but still cannot really understand exactly the sequence of events that cause this. Contrary to what one would assume and you m...
by Cyckelgalen
6 Mar 2020, 6:10pm
Forum: Bikes & Bits – Technical section
Topic: Replacing Hollowtech II Bearings
Replies: 52
Views: 10370

Re: Replacing Hollowtech II Bearings

Drilling a grease port on a HT cup is not the best idea IMHO. The outer cap and seal are very easily removed and you have the bearing fully exposed for cleaning and lubing, just as SimonCelsa's photo shows. The outer seal, below the cap, is not an integral part of the bearing, it is only superposed ...
by Cyckelgalen
6 Mar 2020, 10:13am
Forum: Bikes & Bits – Technical section
Topic: New tern compact folder: the BYB
Replies: 10
Views: 641

Re: New tern compact folder: the BYB

That new Tern looks awesome! It is quite normal for folders to develop some squeak from the hinge. My Dahon Speed TR has a bolt that allows to adjust the clamp on both hinges, frame and steering. The Jack has probably a similar design. Normally the squeak disappears if you tighten the adjusting bolt...
by Cyckelgalen
5 Mar 2020, 11:19am
Forum: Bikes & Bits – Technical section
Topic: Replacing Hollowtech II Bearings
Replies: 52
Views: 10370

Re: Replacing Hollowtech II Bearings

The older type HT II has 15 balls, and they may well be 3.5 mm, cannot measure accurately without getting them out The new type should have a few more, if you reduce the size of the balls you simply need more balls to go around the same 25 mm inner race. Still, while the load sharing will be improve...
by Cyckelgalen
4 Mar 2020, 10:13pm
Forum: Bikes & Bits – Technical section
Topic: Replacing Hollowtech II Bearings
Replies: 52
Views: 10370

Re: Replacing Hollowtech II Bearings

Thanks Brucey for your thorough reply. I have actually experienced rough BB cartridge bearings running smooth once out of their assembly/housing. I thought it might be a random effect of my unorthodox method of knocking them out, but it never occurred to me that press fitting them into place might c...
by Cyckelgalen
4 Mar 2020, 10:53am
Forum: Bikes & Bits – Technical section
Topic: Replacing Hollowtech II Bearings
Replies: 52
Views: 10370

Re: Replacing Hollowtech II Bearings

The basic Deore is the BB52 and you can get it for a tenner. You shouldn't even consider bearing replacement. The bearings are identical to the older type XT BB70, I believe, so god value really. But on a long tour I'd rather have something truely dependable that I don't need to replace regularly or...
by Cyckelgalen
3 Mar 2020, 1:24pm
Forum: Bikes & Bits – Technical section
Topic: Replacing Hollowtech II Bearings
Replies: 52
Views: 10370

Re: Replacing Hollowtech II Bearings

Thanks Woodtourer,

By "these BB" you mean the new type, small bearing cup XT's ? That is, MT800, MT8000, etc .
by Cyckelgalen
3 Mar 2020, 12:06pm
Forum: Bikes & Bits – Technical section
Topic: Replacing Hollowtech II Bearings
Replies: 52
Views: 10370

Re: Replacing Hollowtech II Bearings

I resurrect an old thread to avoid proliferation of similar threads Replacing HT bearings is uneconomical given the prices of new BB's, the new type XT BB-MT800 goes for around 15£, much cheaper than any top quality replacement bearings. It would only make sense if you want to construct a truly dura...
by Cyckelgalen
14 Feb 2020, 2:18pm
Forum: Does anyone know … ?
Topic: Compatibility of Shimano freehubs.
Replies: 12
Views: 1321

Re: Compatibility of Shimano freehubs.

Thanks Brucey! Great piece of advice! Ideally one should strip the freehub to have a look for abnormal wear. That sort of unbalanced engagement and load should leave visible wear traces, but doing that is such a faff. Short of replacing the hub (not an economical option these days, rather get a new ...
by Cyckelgalen
14 Feb 2020, 12:11pm
Forum: Does anyone know … ?
Topic: Compatibility of Shimano freehubs.
Replies: 12
Views: 1321

Re: Compatibility of Shimano freehubs.

Thanks Brucey, I should have thought of that! The aluminium axels have thicker walls and large outer diameter than the older steel XT's, so the freehubs have to be different. The hollow fixing bolts use 10 vs 14 mm Allen wrenches. Bad news, the wheel came on a bike that was a very good deal otherwis...
by Cyckelgalen
14 Feb 2020, 11:21am
Forum: Does anyone know … ?
Topic: Compatibility of Shimano freehubs.
Replies: 12
Views: 1321

Re: Compatibility of Shimano freehubs.

I have failed to find so far a decent freehub compatibility chart to see clearly which freehubs match various hubs. I wonder if is necessary taking a freehub spare on an extended tour outside Europe, given the frecuent reports of newer freehubs failing. If so, I'd need to find a freehub compatible w...
by Cyckelgalen
10 Feb 2020, 8:57pm
Forum: Bikes & Bits – Technical section
Topic: Shimming freehubs
Replies: 16
Views: 1531

Re: Shimming freehubs

Freehub body play.
Should there be any? How much is acceptable.

I have a new wheel,with a new M765A hub with very noticeable play with the axel removed/undone.
I can wiggle the free hub around at leat one mm. Is it normal having to remove shims on new higher end hubs?
Thanks