Search found 120 matches

by thekelticfringe
29 Nov 2009, 9:38am
Forum: Bikes & Bits – Technical section
Topic: Commuting - what bike to get?
Replies: 40
Views: 4584

Re: Commuting - what bike to get?

Good stuff Nick - post up a pic of the full rig for us to admire whilst it is still new and shiny!
by thekelticfringe
29 Nov 2009, 9:36am
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

meic wrote:my offroad experience is limited to a few seconds after some road experiences. :D


LOL - hope it all ended well :lol:
by thekelticfringe
29 Nov 2009, 9:33am
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

once the tread cannot sink in, it is a question of getting the maximum possible surface area in contact (all other things, like rubber softness being equal). Hence a completely slick tyre offers the maximum possible grip on road. I'm not sure. I understand the progression, and MTB tyres 'digging in...
by thekelticfringe
29 Nov 2009, 9:17am
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

Playing on a mate's quad gave me problems of a similar nature, plus every time I stopped it I suibconsciously tried to put my feet down.
by thekelticfringe
28 Nov 2009, 4:57pm
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

In fact compared to on the motorcycle, I dont seem to lean the cycle often at all. Meic - slightly OT, but when I rode a motorbike I was told to move my bodyweight to the inside of the corner which has the effect of keeping the bike a little more upright. Ridng a mountainbike I've been told to lean...
by thekelticfringe
28 Nov 2009, 4:44pm
Forum: Campaigning & Public Policy
Topic: Not convinced on cycle lanes
Replies: 301
Views: 13223

Re: Not convinced on cycle lanes

Eeerrrm........ this thread is about the wisdom of cycle lanes, right?
by thekelticfringe
28 Nov 2009, 4:30pm
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

No, I don't see how tread can lock with road surfaces. It's the deforming rubber that would do that, so the rubber compound and inflation pressure will matter more than the tread. Well perhaps *both* things are going on at the same time? One effect doesn't rule out the other one. For sure the rubbe...
by thekelticfringe
28 Nov 2009, 4:11pm
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

I think tread on a cycle tyre has a couple of purposes. The first is to improve **mechanical** grip so that the knobs/grooves on the tyre can physically engage with the irregularies of the road surface - very approximately like the cogs of a rack railway. This has the benefit of grip, but also the d...
by thekelticfringe
28 Nov 2009, 12:37pm
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

Hmm - interesting. Totally accept yr point about front and rear being different depending on geometry, riding style and dynamic loading etc. Only aiming at a very general calculation. Maybe the conversion ratio is wrong then? Google offered me a factor of 0.07 to convert between Kg/cm2 and psi. So I...
by thekelticfringe
28 Nov 2009, 12:18pm
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

Yes - I think aquaplaning isn't an issue - if you think about it, my weight (C 75kgs) plus bike and baggage must come to about 85-90Kgs. Contact area is about "a postage stamp" per tyre. If you call that a contact patch of 1 cm wide by 2 cm long (or 2cmsq) per tyre we're up to anywhere bet...
by thekelticfringe
26 Nov 2009, 2:18pm
Forum: Cycling Goods & Services - Your Reviews
Topic: Waterproof Socks
Replies: 70
Views: 11674

Re: Waterproof Socks

I have knee-length sealskinz. Read this thread with interest, so thought I'd try something. So: first, a pair of cotton socks. Then Sealskinz (approx 1 year old, many washes). Then my cycling tights (so the Sealskinz are inside the tights). Then a pair of goretex boots. 16 mile commute in the lashin...
by thekelticfringe
26 Nov 2009, 2:10pm
Forum: On the road
Topic: Tyres for the wet
Replies: 41
Views: 1776

Re: Tyres for the wet

Not wanting to tempt fate, but things have been looking up, with more grip seeming to be available, combined with more focus on cornering technique. Maybe just greasy roads after the 'summer' and a bit of wayward enthusiasm on my part. Thanks for the advice and suggestions.
by thekelticfringe
26 Nov 2009, 2:04pm
Forum: Bikes & Bits – Technical section
Topic: rim wear with V-Brakes
Replies: 12
Views: 837

Re: rim wear with V-Brakes

Just to say thanks for all the advice. I'll get a regular programme of checking, as it sounds like a hazard that is easy to avoid, but could be quite nasty! FWIW I worked out that my commute alone is about 5K miles a year, ignoring any leisure/pleasure cycling. It's a fairly hilly route, involves sh...
by thekelticfringe
22 Nov 2009, 10:44pm
Forum: On the road
Topic: So why DO you cycle?
Replies: 81
Views: 265168

Re: So why DO you cycle?

Makes me feel good, wakes me up in the morning and gives me a way to let off steam in the evening Is faster way to commute than driving (Glasgow) Gets and keeps me fit, both in general and for Mountain Biking Saves money Gives me a simple bit of machinery to mess about with and buy shiny new bits fo...
by thekelticfringe
22 Nov 2009, 6:04pm
Forum: Bikes & Bits – Technical section
Topic: Commuting - what bike to get?
Replies: 40
Views: 4584

Re: Commuting - what bike to get?

OOOps realise I've strayed a bit off topic. Apologies - I'll shut up now.