Search found 537 matches

by PT1029
14 Jun 2019, 8:53pm
Forum: Bikes & Bits – Technical section
Topic: Bolt types and sizes
Replies: 7
Views: 357

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: 9
Views: 280

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: 487

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: 3
Views: 256

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: 540

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, ...
by PT1029
7 Jun 2019, 10:19pm
Forum: Does anyone know … ?
Topic: Uber Licence plates - Can you get them?
Replies: 8
Views: 622

Re: Uber Licence plates - Can you get them?

Thanks for the https://vehicleenquiry.service.gov.uk/ViewVehicle link, I was aware of such a thing but never looked to find it. I thought I'd give it a try. I don't have a car, so looked out of the window for a number plate, only 1 neighbours car visible, so I put that in. Oh dear, it's un taxed!! A...
by PT1029
1 Jun 2019, 12:31pm
Forum: For Sale - Complete bikes ONLY - state FRAME SIZE in title
Topic: Mercian for sale, 21 1/2"
Replies: 1
Views: 626

Re: Mercian for sale.

Bump + extra photos/details.
by PT1029
1 Jun 2019, 7:10am
Forum: On the road
Topic: Cyclist dismount?
Replies: 18
Views: 1251

Re: Cyclist dismount?

In Oxfordshire we have managed to get them to put up signs "Narrow lanes do not overtake cyclists". The occasions that dismount signs are used it is with contractors who should have known what the County expected of them. I think the thing that swung it was when the High St was rebuilt - s...
by PT1029
29 May 2019, 9:03pm
Forum: Bikes & Bits – Technical section
Topic: New bike but don’t no about bits come with it
Replies: 12
Views: 642

Re: New bike but don’t no about bits come with it

I would ask the shop that sold it to you. In case the shop is not local..... as best as I can as I don't have Di2 1st Photo with numbered bits. No idea. 2nd photo No idea. 3rd Photo Bell. Undo the screw, slip bracket over handle bars, redo screw up. How ever the bell look like a standard (to me) bel...
by PT1029
29 May 2019, 8:42pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Centros Headset Adjustment ?
Replies: 11
Views: 402

Re: Raleigh Centros Headset Adjustment ?

To be fair to Brucey, I don't think he's particularly having a go at you personally. I used to teach cycle maintenance courses, and wrote detailed instructions on how to do various adjustments. People's mechanical skills vary enormously. Some people I've taught have a vague idea how to do something,...
by PT1029
28 May 2019, 9:33pm
Forum: Bikes & Bits – Technical section
Topic: Raleigh Centros Headset Adjustment ?
Replies: 11
Views: 402

Re: Raleigh Centros Headset Adjustment ?

If your old bikes had a "bolt down the centre", they would be the older style quill stem/threaded headset, Yours looks more like an A head threadless headset design - this should have a (smaller) bolt going a (short distance only) down the centre (used to adjust the bearings) - but yours d...
by PT1029
28 May 2019, 9:12pm
Forum: Bikes & Bits – Technical section
Topic: Di2 - A technology too far?
Replies: 90
Views: 2812

Re: A technology too far?

I don't use DI2 either (bar end levers for me). It did occure to me that DI2 could be useful on (too) steep hills, as you get off to walk, you shrug your shoulders and say "Computer said no".....
by PT1029
28 May 2019, 9:07pm
Forum: Cycle Camping sub-forum
Topic: BIG AGNES Copper Spur HV UL2 - Any Opinions?
Replies: 25
Views: 672

Re: BIG AGNES Copper Spur HV UL2 - Any Opinions?

Looking at the link, Big Anges pitch inner tent first - so it will get wet when pitching in heavy (or less?) rain. As I don't live in Arizona, I always go for pitch outer first in case of wet weather. (Hilliberg is outer first, or both together if you keep them hooked together when packed in your pa...
by PT1029
26 May 2019, 7:17pm
Forum: Does anyone know … ?
Topic: Correct seatpost clamp sizing
Replies: 2
Views: 228

Re: Correct seatpost clamp sizing

If you are talking about the clamping collar where the seat post enters the frame, diameter is usually 28.6mm, 31.8 or 34 (or is it 34.something?) - the same as clamp on front gears (unless you have some tapered exotic something or other). Seat posts come in 0.2mm diameter increments, the decimal po...
by PT1029
26 May 2019, 7:02pm
Forum: Offered for Free
Topic: Girvin flexstem GONE
Replies: 12
Views: 443

Re: Girvin flexstem

I assume 1 1/8" fit? (25.4 diameter stem in the forks). Popular when I worked in our LBS in the 1990's (boss had one). If the elsatomer goes hard, I remember the boss saying putting the elastomer in the microwave would soften it back up, but I don't recall the time or wattage settings for the m...