Search found 199 matches

by Chris Jeggo
2 Sep 2018, 2:39pm
Forum: Bikes & Bits – Technical section
Topic: Front mech inline barrel adjuster question
Replies: 7
Views: 497

Re: Front mech inline barrel adjuster question

The original question prompts another:
Is there more than one way to insert a barrel adjuster in-line?

My answer to the original question is turn the adjuster a turn or two and see what happens to the cable length/tension. Then you will know what to do to obtain the adjustment you require.

Chris
by Chris Jeggo
18 Aug 2018, 12:11pm
Forum: Bikes & Bits – Technical section
Topic: Self maintenance advice,
Replies: 32
Views: 1340

Re: Self maintenance advice,

Once again Brucey gives excellent advice. can I be a BOF and suggest a good book as a useful starting point? You will of course have to dip into the internet for new stuff as it comes along but a good book will prime you on a lot of the background, language, principles etc without which you could re...
by Chris Jeggo
20 Aug 2017, 6:35pm
Forum: Does anyone know … ?
Topic: Mileposts
Replies: 13
Views: 827

Re: Mileposts

According to Alan Rosevear of the Milestone Society in an article 'Archaic Inscriptions on Bath Road Milestones' ( http://www.milestonesociety.co.uk/journal/Milestones%20&%20Waymarkers%20vol%201.pdf ) Hyde Park Corner was used as the datum for the Bath Road and the Exeter Road. Norman W Webster,...
by Chris Jeggo
10 Jun 2017, 10:44am
Forum: Bikes & Bits – Technical section
Topic: What does it mean if... (chain jumping between gears)...
Replies: 13
Views: 1056

Re: What does it mean if... (chain jumping between gears)...

This sounds exactly like a problem I had recently. I replaced a 9-speed (chain and) cassette (all working OK but worn) with a Shimano Alivio HG400 12-36t 9-speed cassette. Investigation revealed that the sprocket pitch and cassette width were less than quoted by Sheldon Brown https://www.sheldonbrow...
by Chris Jeggo
6 Jun 2017, 5:36pm
Forum: Bikes & Bits – Technical section
Topic: Modern wheels / Classic frame.
Replies: 32
Views: 2310

Re: Modern wheels / Classic frame.

My first bike, when I was 11, had 24" wheels and 40x18 single freewheel gearing, giving a 53" gear. When I grew bigger and stronger I needed to increase the gearing, but had little money. I opted for a 14t fixed sprocket rather than a 16t freewheel. Meccano had taught me about locknuts, an...
by Chris Jeggo
29 May 2017, 9:36am
Forum: Bikes & Bits – Technical section
Topic: Wheel re-rim complication
Replies: 10
Views: 3757

Re: Wheel re-rim complication

Is the valve hole a simple drilling or something more elaborate? Is there anything wrong with drilling a better placed valve hole? (I bet someone will have an answer to that.) The redundant hole could be covered by an appropriate sticker, but cosmetic issues must be decided by the owner.
by Chris Jeggo
7 Oct 2016, 10:02am
Forum: Cycling UK Topics and Discussions
Topic: CANDIDATES FOR THE CTC/CUK ELECTION
Replies: 197
Views: 42319

Re: CANDIDATES FOR THE CTC/CUK ELECTION

A few days ago I received an email from a W Surrey CTC member asking the following question. "Do you have any suggestions, please, about whom to vote for in the Cycling UK trustee elections? I don't know any of the names on the ballot paper that came with the magazine but I am surprised at how ...
by Chris Jeggo
8 Apr 2016, 1:08pm
Forum: The Cycling UK brand refresh
Topic: Negative Git!!
Replies: 23
Views: 24404

Re: Negative Git!!

Methinks Oliver Foster should lick Velocio's cycling shoes else seek employment more suited to his abilities.
by Chris Jeggo
26 Feb 2016, 11:41am
Forum: Bikes & Bits – Technical section
Topic: the future?
Replies: 59
Views: 2556

Re: the future?

automatic? what does it do - aim for a set cadence? It changes down when chain tension exceeds a threshold set by springs plus adjustable one-way friction clutches. Wilson's criticism matches what I found. Some utility and easy-going touring cyclists might have found it suitable had it made it into...
by Chris Jeggo
26 Feb 2016, 11:06am
Forum: Bikes & Bits – Technical section
Topic: the future?
Replies: 59
Views: 2556

Re: the future?

Has anyone invented automatic gears for the bicycle yet? :shock: :) Yes! I reviewed the Deal Drive in the June/July 1983 issue of 'Cycletouring'. It worked, after a fashion, but it never made it to the market. It wasn't the first attempt, either. Edit/correction: Deal Drive International's glossy p...
by Chris Jeggo
25 Feb 2016, 5:30pm
Forum: Bikes & Bits – Technical section
Topic: stress relieving new wheels myths?
Replies: 102
Views: 5174

Re: stress relieving new wheels myths?

Nothing will convince me that half a turn wind-up shortens the effective length of the spoke by the equivalent of one quarter turn of the nipple. If the nipple does not move, and the spoke head does not move, but the threaded end of the spoke rotates half a turn in the nipple, then the threaded end...
by Chris Jeggo
25 Feb 2016, 1:52pm
Forum: Bikes & Bits – Technical section
Topic: stress relieving new wheels myths?
Replies: 102
Views: 5174

Re: stress relieving new wheels myths?

Nothing will convince me that half a turn wind-up shortens the effective length of the spoke by the equivalent of one quarter turn of the nipple. If the nipple does not move, and the spoke head does not move, but the threaded end of the spoke rotates half a turn in the nipple, then the threaded end...
by Chris Jeggo
24 Feb 2016, 9:26pm
Forum: Bikes & Bits – Technical section
Topic: stress relieving new wheels myths?
Replies: 102
Views: 5174

Re: stress relieving new wheels myths?

Residual twist in a spoke matters. There is friction between the spoke and the nipple, the higher the spoke tension the higher the friction, and therefore the higher the torque that can be sustained. Spoke tensions vary as the loaded wheel rolls, so a twisted spoke can untwist a bit when its tension...
by Chris Jeggo
24 Feb 2016, 8:17pm
Forum: Bikes & Bits – Technical section
Topic: alivio 44T chainring
Replies: 12
Views: 1232

Re: alivio 44T chainring

Sweep, I've sent you a PM.