Search found 559 matches

by PT1029
29 Jun 2019, 2:36pm
Forum: Bikes & Bits – Technical section
Topic: Front wheel locked while cycling: disc brake or mudguard?
Replies: 72
Views: 2440

Re: Front wheel locked while cycling: disc brake or mudguard?

Indeed, the breakaway clips are always fitted to 1 set (pair) of the stays at the SKS factory, just requires the installer to put the stays with the break away brackets on the front rather than the back (have seen shop fitted mud guards with them on the back...). May be the clips were removed on pur...
by PT1029
29 Jun 2019, 2:01pm
Forum: Does anyone know … ?
Topic: Carlton seat post size
Replies: 9
Views: 431

Re: Carlton seat post size

25.4 it will be.
I see you have one of the pretty chrome ones (keep it slightly oiled to preserve the chrome).
by PT1029
29 Jun 2019, 8:01am
Forum: Does anyone know … ?
Topic: Carlton seat post size
Replies: 9
Views: 431

Re: Carlton seat post size

Even (some of) the cheap Carltons in the 1970's had nice* wrap over seat stays - quite a few of my school friends had them, including a Cobra. They were the cheaper Carltons because they had steel rims/steel seat post/steel cottered chainsets (variously single and double) and often a ghastly plastic...
by PT1029
28 Jun 2019, 6:15am
Forum: Does anyone know … ?
Topic: Carlton seat post size
Replies: 9
Views: 431

Re: Carlton seat post size

Carlton Cobras were normal (tensile?) steel, not 531, my bet is a 25.4 seat post.
by PT1029
27 Jun 2019, 5:27pm
Forum: Bikes & Bits – Technical section
Topic: Drive side spokes breaking
Replies: 16
Views: 602

Re: Drive side spokes breaking

I would imagine its faulty spokes, as breaking spokes after 500 - 1000 miles is rather quick. IME black spokes are more prone to breaking than silver, so if respoking use silver. Slack spoke tension will shorten the metal fatigue life of all the spokes, I would have thought this would take longer th...
by PT1029
27 Jun 2019, 5:13pm
Forum: Does anyone know … ?
Topic: Cycle trailer for gardening tools
Replies: 9
Views: 540

Re: Cycle trailer for gardening tools

+1 for the one in the photo, my partner has used one for her gardening tools. If resting forks/spades etc in (like the green handled cutters in the photo), its worth putting some old card board or some such to protect the fabric from the fork/spade. Similar versions of that trailer (as good as ident...
by PT1029
24 Jun 2019, 3:58pm
Forum: Bikes & Bits – Technical section
Topic: Bicycle Brinkmanship....?
Replies: 27
Views: 1293

Re: Bicycle Brinkmanship....?

There is doing things as they should be done (hence the mechanics unrepeatable language), and there are doing things that while unconventional/not "proper", do work (after a fashion). Your bike falls into the latter - and better to do such things only on your own bike..... As for criteria,...
by PT1029
24 Jun 2019, 3:27pm
Forum: Bikes & Bits – Technical section
Topic: Centre pull cable pinch bolt slippage, with pics
Replies: 18
Views: 449

Re: Centre pull cable pinch bolt slippage, with pics

The M6 bolt (10mm spanner nuts) is designed for normal (and none Weinmann) canti yokes which are flat plate where the bolt head sits - thus the head can clamp down onto the cable. The correct M5 bolt (8mm spanner nuts) head I think slots in the groove, allowing the bolt to clamp move further in and ...
by PT1029
24 Jun 2019, 11:59am
Forum: Bikes & Bits – Technical section
Topic: Microshift vs Shimano compatibility
Replies: 4
Views: 414

Re: Microshift vs Shimano compatibility

Thanks for the advice, in the end Decathlon got him a replacement LH lever from France (which seemed their preferred option over getting one from the Croyden store!) and fitted in just in time for him to go the Isle of Wight for the weekend. Fortunately they fitted it and adjusted it well, so all wo...
by PT1029
24 Jun 2019, 7:11am
Forum: Bikes & Bits – Technical section
Topic: loctite stud lock 270
Replies: 8
Views: 452

Re: loctite stud lock 270

There is a huge number of Loctit products. I looked through a catalogue at out local bearing supplier a few years back (looking for the right one for securing the rear axle bearings on an old 8Freight, or it might have been for a lower headset cup in a steel frame). To give you a idea, some were for...
by PT1029
14 Jun 2019, 8:53pm
Forum: Bikes & Bits – Technical section
Topic: Bolt types and sizes
Replies: 10
Views: 592

Re: Bolt types and sizes

My hunch is the top bolt is for bolting an inner chain ring to an older Shimano triple crank - the tread length (to me) suggests the older design where there is a separate spacer between the inner chain ring and the crank. On later models the crank forging had more protruding mounting points for the...
by PT1029
14 Jun 2019, 8:29pm
Forum: Does anyone know … ?
Topic: Ammaco CS250
Replies: 11
Views: 456

Re: Ammaco CS250

Most Ammacos are pretty poor (I repair some at work...), with most having very poor quality cup and cone BB (crank) bearings. The CS 250 is what I would call reasonable/passable as it is I would say the best(ish) model they do. The good news is the CS 250 has an adjustable cartridge BB bearing which...
by PT1029
11 Jun 2019, 4:45pm
Forum: Does anyone know … ?
Topic: First time commuting on a bike, I have the option to exchange but would like advice on specs please
Replies: 12
Views: 624

Re: First time commuting on a bike, I have the option to exchange but would like advice on specs please

Lithium 2 is 7 speed cassette, stated ratio is 12 - 32t. But as a general point, most 7 speed bikes are screw on freewheel. To add other options, I'd go for hub gears/single speed (depending on hills), as more weather resistant, cheaper to replace chain/cog(s) when worn out. Some people in the past ...
by PT1029
9 Jun 2019, 5:03pm
Forum: Bikes & Bits – Technical section
Topic: Microshift vs Shimano compatibility
Replies: 4
Views: 414

Microshift vs Shimano compatibility

A friend has had his LH Microshift STI lever/brifter fail. Lots of LH double levers about, triples harder to come by (UK distributor out of stock until September). If he subs a Shimano STI lever (subject to brake cable pull etc) using the original microshift front gear, will it work?, or does he hav...
by PT1029
8 Jun 2019, 2:49pm
Forum: Bikes & Bits – Technical section
Topic: saddle fore aft position KOPS
Replies: 7
Views: 603

Re: saddle fore aft position KOPS

As I understand it, it is what I would call the hinge of the knee/sticky out bit over the pedal axle (crank horizontal/forward). I recall somewhere seeing a plumb line from the front of the knee cap over the pedal spindle which I take as wrong. If I used the front of the knee cap over axle version, ...