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by 531colin
18 Mar 2024, 8:43pm
Forum: Bikes & Bits – Technical section
Topic: Headset on Claud Butler Dalesman
Replies: 26
Views: 786

Re: Headset on Claud Butler Dalesman

Rob D wrote: 18 Mar 2024, 7:34pm …….There was a top cap, but that's secured by a long bolt going down to a sort of oversized spring washer with central female thread - a 'sunflower'? See photo.

At the base of the stem, where it protrudes from the top of the head tube is a thin tube (for want of a better description), possibly the top of the drop cap or upper bowl lid (from diagrams on the net)? This has a 'slot' in it. I'm wondering what this is for? See photos. I'm hesitant to proceed further til I know how to tackle the next stage. I'll search YouTube too.
The long bolt is the bolt which sets bearing preload; it screws into the star washer. The star washer is a tight enough fit in the steerer tube to give purchase for preload adjustment.

Drop cap and upper bowl mean nothing to me in the context of headsets

Wikipedia has clear diagrams of threadless cycle headsets
by 531colin
18 Mar 2024, 7:03pm
Forum: Does anyone know … ?
Topic: Best online or app map for non-road routes?
Replies: 8
Views: 315

Re: Best online or app map for non-road routes?

TheWho wrote: 16 Mar 2024, 11:21am Thanks very much, that's all really helpful! Quite a lot of routes near me on roads, but more than I'd realised through field's, etc. Two questions:

First, are the cycle paths through field's often blocked? E.g. gate closed or there's a stile.

Second, quite a few routes near me go onto public access land or dead end at the top of a hill or something. What are the rules for bikes on public access land? Could I cycle from the end of one route across the hill on public access land and then meet up with the dead end of another route?
Not my specialty subject, but nobody has picked this up.

You are allowed to cycle on roads and byways. There are also “restricted byways” where access to the byway is restricted to certain groups of users. I’ve never seen a restricted byway where cycles are not permitted but you never know.
The countryside act amendment of 1980 ( I think) gave cyclists permission to cycle on bridleways.
Cycle paths are designed and implemented by the local authority I believe. They range from shared pavement to converted railway tracks, with a few newly constructed paths .
Cycle paths won’t have stiles and locked gates, but they won’t often go across fields either.
Because somebody has recorded a route on a website doesn’t mean it’s legally useable.
Access land is accessible on foot, not on bikes or horseback.
by 531colin
18 Mar 2024, 1:00pm
Forum: Bikes & Bits – Technical section
Topic: 8 speed chain on 10 speed chainset ?
Replies: 11
Views: 378

Re: 8 speed chain on 10 speed chainset ?

I'm using 8 speed chain on triple setups, both 8 and 9 speed triples, and I think some of the chainrings are recent enough to be classified as "10 speed".
Its something which probably "shouldn't work" but it does.
I had a bit of a surprise a year or 3 ago getting "chain suck", which turned out to be due to wear at the base of the teeth.....sorted out by some gentle filing to re-shape the teeth. viewtopic.php?t=116834&hilit=reverse+we ... e&start=30
If you are using the old Stronglight cranks (or the Spa clones.....Impact, TD 2) there is a spacer between the spider and the "middle" ring, I always wanted to find out if you could get away without that on a double........but you probably want it in place with a wide 8 sp. chain?
by 531colin
18 Mar 2024, 8:09am
Forum: On the road
Topic: Dangerous mudguards
Replies: 37
Views: 3289

Re: Dangerous mudguards

This is an old old thread resurrected by a one post new member, so it’s probably all a waste of time

However, I have tried to get the vee shaped mudguard stay which pulls out of the SKS release to catch in the spokes, and I failed. It’s pretty easy to try it and reassure yourself it’s all perfectly safe.
by 531colin
16 Mar 2024, 10:30am
Forum: Does anyone know … ?
Topic: Best online or app map for non-road routes?
Replies: 8
Views: 315

Re: Best online or app map for non-road routes?

I think I’m right in saying you can get access to OS maps via Cycle.travel; cheaper than subscribing to OS on line.
by 531colin
16 Mar 2024, 10:23am
Forum: Bikes & Bits – Technical section
Topic: Budget wheels opinion
Replies: 13
Views: 520

Re: Budget wheels opinion

Warning….this post contains technical information.
It’s up to you whether you read it or not, but please don’t read it and then abuse me for posting technical information in the technical board of the forum.

The wheels in question will be machine built. It’s worthwhile spending a couple of hours stress relieving and balancing the tension, and adjusting the bearings if they are cup and cone.

There, that wasn’t too stressful, was it?
by 531colin
15 Mar 2024, 10:19pm
Forum: Bikes & Bits – Technical section
Topic: Child-size pedal threads are smaller
Replies: 4
Views: 212

Re: Child-size pedal threads are smaller

Left pedal is always left thread whichever size!
by 531colin
15 Mar 2024, 10:18pm
Forum: Bikes & Bits – Technical section
Topic: Bottom bracket size
Replies: 35
Views: 1044

Re: Bottom bracket size

No grease on the tapers. Crank and taper should be dry and seize together.
Seize is the wrong word, hopefully Brucey will be along
by 531colin
15 Mar 2024, 10:14pm
Forum: Bikes & Bits – Technical section
Topic: Child-size pedal threads are smaller
Replies: 4
Views: 212

Re: Child-size pedal threads are smaller

Ashtabula cranks always used to take 1/2 inch thread pedals, not 9/16 as most “adult” pedals ..even adult BMX

Back in maybe fifties? Children’s bikes also used half inch pedals as well as smaller handlebars, hubs and things….” Junior size”
by 531colin
15 Mar 2024, 8:33pm
Forum: Bikes & Bits – Technical section
Topic: Headset on Claud Butler Dalesman
Replies: 26
Views: 786

Re: Headset on Claud Butler Dalesman

Got to be/have been a bolt to set bearing preload.
Maybe under a cap?
by 531colin
15 Mar 2024, 3:30pm
Forum: Bikes & Bits – Technical section
Topic: Headset on Claud Butler Dalesman
Replies: 26
Views: 786

Re: Headset on Claud Butler Dalesman

I think its pretty easy to have a little peep inside, although that depends on how comfortable you are with taking stuff to bits.....and putting it back together again!
I have never used a steerer extender of the particular type you show....I guess there is a top cap on it with a long(!) bolt to set the bearing preload? Then it should be a case of undo the preload bolt and the pair of pinch bolts at the bottom of the extender, and lift off the extender? Then lift off the spacers and the cable hanger (pinchbolt to undo there as well) then remove the top bearing cup and look whats inside?
by 531colin
15 Mar 2024, 11:51am
Forum: Bikes & Bits – Technical section
Topic: Headset on Claud Butler Dalesman
Replies: 26
Views: 786

Re: Headset on Claud Butler Dalesman

On a threadless headset you get water ingress from the top.
In the OPs pictures, the pinch bolt for the cable hanger is rusty, which indicates the bike has been used in UK weather.
The slot in the cable hanger is open to the steerer, and then there is nothing to keep water out of the top bearing.
OPs stem extender is better than a lot of situations; after a wet tour, I found my (hollow, threadless) stem contained about an egg-cupfull of water....its just got to trickle down between the steerer and the spacers and its in the top bearing.
There is no money for manufacturers in making these things waterproof, because the huge majority of stems, headsets etc go on new bikes.
by 531colin
15 Mar 2024, 11:37am
Forum: Bikes & Bits – Technical section
Topic: 1" Steerer- worn threads
Replies: 12
Views: 527

Re: 1" Steerer- worn threads

Found the pictures of the "mending" headset.

ImageIMG_5367 by 531colin, on Flickr

Top pinch bolt fixes the sleeve to the steerer.
below that is the adjusting cup, with its own pinch bolt to lock off the adjustment . (if you could find a one inch adjusting cup with a pinch bolt, that on its own would do you. This one, of course, isn't threaded for the steerer, its threaded for its own sleeve. :roll:

ImageIMG_5364 by 531colin, on Flickr

This is the bottom of the adjusting cup and the inside of the sleeve.

ImageIMG_5368 by 531colin, on Flickr

Finally, the destructions! Mine doesn't have the brake hanger.

£22.50 on the box.....add at least 20 years inflation, I reckon its a bargain at £25 to charity.
by 531colin
15 Mar 2024, 11:29am
Forum: Bikes & Bits – Technical section
Topic: 1" Steerer- worn threads
Replies: 12
Views: 527

Re: 1" Steerer- worn threads

Image005 by 531colin, on Flickr

Thats another way to do it, while I've got the photo.
Internally sleeved with part of a steel quill stem and silver brazed an extra bit of steerer on.
Still need to find a one inch threadless headset, which I haven't looked for in years......
by 531colin
15 Mar 2024, 10:48am
Forum: Bikes & Bits – Technical section
Topic: 1" Steerer- worn threads
Replies: 12
Views: 527

Re: 1" Steerer- worn threads

I’ve had a rummage and I’ve got the thing (that used to be) made for the job.
1” headset which has a threaded collar which substitutes for the damaged thread. Threaded collar clamps to the damaged steerer, top adjusting race threads on the collar. To keep stack height, adjusting race has a pinch bolt to lock off not a locknut.
£25 to either Sustrans or Cyclists defence fund.
I may have pictures on file, I’ll get a coffee and have a look.
Bottom race is needle bearing exactly as A9 top bearing is balls in retainer.

Threadless headsets are made to work on the (smooth) steerer, I don’t know how they would work on a threaded bit of steerer, or on the spacers of one of those steerer extenders