Search found 2526 matches

by stewartpratt
16 Aug 2015, 8:12am
Forum: Bikes & Bits – Technical section
Topic: Hello CTC! DIY titanium allen key project :).
Replies: 61
Views: 5338

Re: Hello CTC! DIY titanium allen key project :).

Obviously we need to know how much weight this actually saves ;)
by stewartpratt
7 Aug 2015, 7:59am
Forum: Does anyone know … ?
Topic: Bike reservation on train?
Replies: 23
Views: 2506

Re: Bike reservation on train?

Ah yes, beg your pardon. From the linked page: "If you are travelling on our London Waterloo to Salisbury/Exeter/Bristol services you will need to reserve a space for your cycle. You can reserve a cycle space at any staffed station or through our Customer Service Centre. Please book at least 24...
by stewartpratt
7 Aug 2015, 7:39am
Forum: Does anyone know … ?
Topic: Bike reservation on train?
Replies: 23
Views: 2506

Re: Bike reservation on train?

SWT don't do reservations, you just turn up. Basingstoke to Exeter has no specific restrictions. You'll probably be on a 444 (white) which has 5-coach units (1-2 units per train) with three dedicated spaces in coaches 2 and 3 of every unit. More details: http://www.southwesttrains.co.uk/cycle-policy...
by stewartpratt
6 Aug 2015, 1:42pm
Forum: Does anyone know … ?
Topic: Isle of Wight Chain Ferry
Replies: 28
Views: 2583

Re: Isle of Wight Chain Ferry

Others are at Sandbanks, Dorset, Trelissick, Cornwall ('King Harry Ferry'), Torpoint, Devon/Cornwall, Dartmouth, Devon, Windermere, or Reedham, Norfolk. Thanks for that list. Wasn't a huge fan of the roads into Falmouth when I was last down there so Trelissick looks like a nice alternative for next...
by stewartpratt
4 Aug 2015, 9:50am
Forum: Does anyone know … ?
Topic: simple question...
Replies: 9
Views: 976

Re: simple question...

BTW unless the reach of the lever is unusually short or long, the MA is pretty good guide to the available cable pull; higher MA giving shorter cable pull and vice versa. Indeed: lever MA, not caliper MA as given above, though. R2 should be able to use V-specific brake levers and V-specific cross-t...
by stewartpratt
4 Aug 2015, 8:35am
Forum: Does anyone know … ?
Topic: simple question...
Replies: 9
Views: 976

Re: simple question...

For what it's worth, for years I've used old-style canti levers (which, AFAIK, have the same pull as road caliper levers) with V brakes. And I've also used mountain (ie V-pull) BB7s with Avid Speed Dials would in for extra mechanical advantage, though I'm not sure how close to canti pull that brings...
by stewartpratt
3 Aug 2015, 2:36pm
Forum: Bikes & Bits – Technical section
Topic: mathematical equation
Replies: 13
Views: 1509

Re: mathematical equation

Why not simply buy a second chain and fit a quick-release link to both chains? Then you just need to change chain when you change wheel and you can use whatever sized sprocket you want.
by stewartpratt
3 Aug 2015, 1:58pm
Forum: Bikes & Bits – Technical section
Topic: mathematical equation
Replies: 13
Views: 1509

Re: mathematical equation

If you add or remove the same number of teeth from either end, you'll end up with the same effective chainstay length. Here's a chart from Fixmeup showing available ratios near your current effective length. The ones nearer the bottom of the chart are lower ratios. You can measure how much leeway yo...
by stewartpratt
3 Aug 2015, 10:07am
Forum: Campaigning & Public Policy
Topic: New cycle lane seems dangerous - opinions please
Replies: 46
Views: 10018

Re: New cycle lane seems dangerous - opinions please

MikeF wrote:The problem seems to be the double yellow lines continuing across the cycleway. This automatically conveys to a motorist that the cyclist should give way.


Double yellows have nothing to do with priority.

The kerb does, though.
by stewartpratt
3 Aug 2015, 9:32am
Forum: Campaigning & Public Policy
Topic: New cycle lane seems dangerous - opinions please
Replies: 46
Views: 10018

Re: New cycle lane seems dangerous - opinions please

It's an improvement in that regard, but I'd be very worried about how drivers might misinterpret the priority signing. I take your point but what's the solution? Are we to abandon the idea of cyclists' priority because drivers won't understand it? There is no priority signing (other than to the lef...
by stewartpratt
2 Aug 2015, 11:31pm
Forum: Does anyone know … ?
Topic: What size outer chainring should I try?
Replies: 16
Views: 2010

Re: What size outer chainring should I try?

FWIW one of my bikes has a standard 105 5700 double front mech with 36/46 Stronglight rings and it shifts just fine, so I wouldn't worry about compatibility on that front. As for figuring out what size ring you want, I'd suggest finding the highest gear in the 50 that you find usable, and noting the...
by stewartpratt
2 Aug 2015, 11:22pm
Forum: Touring & Expedition
Topic: Dynamo front light
Replies: 3
Views: 4735

Re: Dynamo front light

I use both the Luxos U and the Cyo Premium and the latter should fit your requirements perfectly: it's smaller and lighter and has no dangly bit, but the output is comparable in both brightness and beam shape: I would struggle to pick a preferred beam from the two.
by stewartpratt
27 Jul 2015, 3:31pm
Forum: Does anyone know … ?
Topic: Best Tyre Levers
Replies: 34
Views: 3424

Re: Best Tyre Levers

Hm. I think I've got three Speedlevers. Looks like I'll be guarding them well :)