Search found 2075 matches

by mig
17 Feb 2020, 12:31pm
Forum: Bikes & Bits – Technical section
Topic: What is Black Sludge (rim brake question)?
Replies: 36
Views: 1127

Re: What is Black Sludge (rim brake question)?

There is into this interesting mix, to be put, the factor of the actual interface between block and rim. If the rim is smoothly polished and no metal shards are embedded in the block wear rates are very very much reduced. Such a polished rim surface can be promoted by always easing/ stopping brakin...
by mig
17 Feb 2020, 9:44am
Forum: Bikes & Bits – Technical section
Topic: Bike fitting: why? Why not?
Replies: 19
Views: 732

Re: Bike fitting: why? Why not?

fitting for what end purpose though? a fitting to produce a bike for racing (TT even) would give a different result than if you asked for a bike you could ride loaded all day.
by mig
6 Feb 2020, 9:48am
Forum: Does anyone know … ?
Topic: Brucey
Replies: 35
Views: 2158

Re: Brucey

Phil Fouracre wrote:A very helpful guy - he hasn’t commented on this thread yet!


the software only picks up on text such as 'fatigue,' 'sturmey.' 'drum' etc etc :wink:
by mig
5 Feb 2020, 10:14pm
Forum: Does anyone know … ?
Topic: Brucey
Replies: 35
Views: 2158

Re: Brucey

Bike Related Unlimited-Content (or Bru-C) is software originally written on the ZX81 but now upgraded to the latest platforms. Book? Maybe but why not a page/articles/reviews in Cycle magazine ,time & £ permitting? Move over some of the more banal parts of that publication - it's time for some q...
by mig
4 Feb 2020, 11:26am
Forum: Does anyone know … ?
Topic: Reynolds 631
Replies: 26
Views: 1348

Re: Reynolds 631

wasn't there also an oversized tubset in 631?
by mig
31 Jan 2020, 12:42pm
Forum: Bikes & Bits – Technical section
Topic: Not another chain wear thread ...
Replies: 8
Views: 473

Re: Not another chain wear thread ...

the rear sprocket moves laterally to simulate changes in angle but it doesn't simulate the chain being pushed around by the mechs nor climbing the teeth and re-engaging a new sprocket.

$76 for a chain?
by mig
29 Jan 2020, 2:03pm
Forum: Bikes & Bits – Technical section
Topic: Saddle height
Replies: 68
Views: 3203

Re: Saddle height

old thread alert. the first inkling of a broken seat post collar this week was a feeling of being underpowered on the bike. it wasn't fatigue, it was a slipping saddle height. a crack in the collar had allowed it to slip some 5mm (over time i suppose.) i didn't really feel that odd on the bike posit...
by mig
28 Jan 2020, 3:04pm
Forum: Bikes & Bits – Technical section
Topic: Commuting wheels?
Replies: 9
Views: 517

Re: Commuting wheels?

Jamesh wrote:Anyone care to suggest some commuting wheels for a mate of mine?

Need to be a) cheap, b) reliable, c) durable

I was thinking tiagra / Mach 1?

Cheers James


pretty much any fixed hub drilled to get some grease inside. front rim - sputnik. rear rim - any.

they meet all your criteria.
by mig
28 Jan 2020, 2:58pm
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

Re: seat pin collars

Brucey wrote:
mig wrote:
got 1.5 million pairs of socks, no jubilee clips. :D

.


I'm surprised no-one has suggested stuffing the seat tube full of socks....

cheers


it crossed my mind yesterday.

bit 3 bears this. 28.6 too small. 31.8 too big. 29.8 juuuust right. i think you were correct there upthread.
by mig
28 Jan 2020, 9:30am
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

Re: seat pin collars

Hi Too late now, but my steel frame has a 31.8mm. I have a collar around the seat post as well for a couple of reasons: Emergencies like this :) It marks my saddle height should it need to be removed for any reason It's somewhere to attach my Carradice Bagman and can be moved around more easily Reg...
by mig
27 Jan 2020, 11:11pm
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

Re: seat pin collars

Mike Sales wrote:
mig wrote:
just to say that 8 miles whilst standing on the pedals on a fixed bike is a PITA. :evil: :lol:


I would have thought that one part spared was that.


ba boom tish!! :D
by mig
27 Jan 2020, 10:28pm
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

Re: seat pin collars

pwa wrote:Doesn't the old one have any helpful markings?


it's annoyingly blank.

just to say that 8 miles whilst standing on the pedals on a fixed bike is a PITA. :evil: :lol:
by mig
27 Jan 2020, 12:05pm
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

Re: seat pin collars

there are plenty of TIG welded steel frames that use an externally flared seat tube so that they need a larger collar than you might expect, e.g. around 30mm. [Dunno about a Pompino, but otherwise if it is 27,2mm seat pin with a 28.6mm clip the tube has to be no more than 0.7mm wall, which is too t...
by mig
27 Jan 2020, 11:47am
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

Re: seat pin collars

pompino frame.
by mig
27 Jan 2020, 11:30am
Forum: Bikes & Bits – Technical section
Topic: seat pin collars
Replies: 19
Views: 620

seat pin collars

mine broke on arrival at work this morning :evil:

never bought one before. what size for a steel frame with 27.2 seatpin?

got to ride the thing home standing up later.

it's fixed gear :lol: