Search found 347 matches

by sreten
13 Dec 2014, 11:15pm
Forum: Bikes & Bits – Technical section
Topic: SADDLE HEIGHT..please try the "bump test"
Replies: 42
Views: 4903

Re: SADDLE HEIGHT..please try the "bump test"

I find advice about forward/back saddle position is readily accepted. Very many people who buy race bikes end up with too much weight on their hands. After a couple of hours riding their wrists and shoulders are getting sore, I can ride next to them and show that I only need one finger on the bars ...
by sreten
13 Dec 2014, 10:03pm
Forum: Bikes & Bits – Technical section
Topic: Which tyres to fit
Replies: 9
Views: 593

Re: Which tyres to fit

Hi, YMMV but http://www.chainreactioncycles.com/michelin-city-road-tyre/rp-prod26232 In 28mm with reflective stripes for £20 a pair delivered are great value IMO. Not the lightest, but they last ages and have protek puncture protection. The reverse tread rolls really well, like slicks, very happy wi...
by sreten
13 Dec 2014, 3:10am
Forum: Bikes & Bits – Technical section
Topic: Brake issues on 1980s Raleigh
Replies: 20
Views: 1996

Re: Brake issues on 1980s Raleigh

Hi, Old bikes you have to deflate the tyres to remove the wheel. Not stupid as the only time you want to remove a wheel is a puncture or replacing the tyres, both mean deflation. FWIW modern brakes pads for alloy rims are apallingly bad used on steel rims, and the best pads for steel rims don't get ...
by sreten
11 Dec 2014, 1:19am
Forum: Bikes & Bits – Technical section
Topic: "Compact geometry" frame sizes.
Replies: 19
Views: 1454

Re: "Compact geometry" frame sizes.

Hi,

Lets remember the UCI effectively didn't allow compact frames for a long time.

rgds, sreten.
by sreten
10 Dec 2014, 12:55am
Forum: Bikes & Bits – Technical section
Topic: SADDLE HEIGHT..please try the "bump test"
Replies: 42
Views: 4903

Re: SADDLE HEIGHT..please try the "bump test"

My pet theory at the moment is that when I get a "bump" (knee locking out) the saddle is a few millimetres too low, so I raise it until the "bump" goes, and that's my saddle height. (In fact, I raise the saddle until the "bump" has gone in one leg, and is still there i...
by sreten
8 Dec 2014, 12:13am
Forum: Does anyone know … ?
Topic: Ia a one brake BMX bike road legal?
Replies: 8
Views: 3100

Re: Ia a one brake BMX bike road legal?

Hi, The BMX "brakeless" freewheelers use their foot on the rear wheel. Still illegal on the road. UK bikes must have two independent braking systems. Fixed wheels count as one. As do rear coaster brakes. Generally both are fitted with front brakes, but both with rear calipers would be road...
by sreten
7 Dec 2014, 11:46pm
Forum: Bikes & Bits – Technical section
Topic: Square taper orientation
Replies: 5
Views: 729

Re: Square taper orientation

Hi,

I think the short answer is its either one or the other
and practically it makes no real difference, though
the symmetry of parallel appeals more to me.

rgds, sreten.
by sreten
7 Dec 2014, 11:15pm
Forum: Bikes & Bits – Technical section
Topic: Bent frame?
Replies: 25
Views: 2985

Re: Bent frame?

Hi, Wheel dishing and bent frame don't mean the same thing. A dished wheel will be offset from the centre line, a bent frame the wheel will be angled from the centre line, and to boot steel frames can be bent to fix dishing issues. Aluminium frames can have offset rear stays to reduce rear wheel dis...
by sreten
25 Nov 2014, 1:17am
Forum: Bikes & Bits – Technical section
Topic: Difference between "winter" tyres and studded tyres
Replies: 76
Views: 6131

Re: Difference between "winter" tyres and studded tyres

Hi, Winter tyres on cars are coming on leaps and bounds, to the extent they last just as long as summer tyres, but have much more grip in winter but less in summer, than "summer" tyres, which have more warm grip, but much less when cold. In terms of things that can go hideously wrong they ...
by sreten
22 Nov 2014, 11:24pm
Forum: Bikes & Bits – Technical section
Topic: Tyres for Kinetix Pro 406 wheels
Replies: 7
Views: 1737

Re: Tyres for Kinetix Pro 406 wheels

Hi, My best guess is your tyres are these : (369mm) http://www.sjscycles.co.uk/tyres-17-(369)-dept193_pg1/ An odd Moulton size, good luck finding a tyre. rgds, sreten. I think that is the wrong way - the tyres are bigger than the wheel. Rick. Hi, Not at all, I'm referring to to the fitted Kojak's t...
by sreten
22 Nov 2014, 11:14pm
Forum: Bikes & Bits – Technical section
Topic: Removing disc brake mounts from frame
Replies: 9
Views: 956

Re: Removing disc brake mounts from frame

Hi,

There must be a simpler option, what would you do with a disc rear wheel ?

rgds, sreten.
by sreten
19 Nov 2014, 1:14am
Forum: Bikes & Bits – Technical section
Topic: Schwalbe Big Apple 26in tyres.
Replies: 22
Views: 2202

Re: Schwalbe Big Apple 26in tyres.

Hi, 45 to 50 psi is clearly too high for a 2" tyre, as its roughly equivalent to 180 to 200 psi in a 1" tyre, a lot of pointless stress on the carcass. Running 2" tyres at 72.5 psi, 5 bar is a stupid state of affairs, in all respects completely missing the point of the tyres, and dow...
by sreten
18 Nov 2014, 1:07am
Forum: Does anyone know … ?
Topic: % Grades of Climbs/Hills. What does it mean?
Replies: 69
Views: 5560

Re: % Grades of Climbs/Hills. What does it mean?

Hi,

Its not difficult, 1 in 10 = 10% and 56% = 56 in 100. or 5.6 in 10, 1 in 1 = 100%
= 45 degrees. Fact is hills look (and feel) much steeper than they actually are.

rgds, sreten.
by sreten
18 Nov 2014, 12:34am
Forum: Bikes & Bits – Technical section
Topic: Schwalbe Big Apple 26in tyres.
Replies: 22
Views: 2202

Re: Schwalbe Big Apple 26in tyres.

Hi, 45 to 50 psi is clearly too high for a 2" tyre, as its roughly equivalent to 180 to 200 psi in a 1" tyre, a lot of pointless stress on the carcass. Running 2" tyres at 72.5 psi, 5 bar is a stupid state of affairs, in all respects completely missing the point of the tyres, and down...
by sreten
17 Nov 2014, 11:25pm
Forum: Bikes & Bits – Technical section
Topic: Tyres for Kinetix Pro 406 wheels
Replies: 7
Views: 1737

Re: Tyres for Kinetix Pro 406 wheels

Hi,

My best guess is your tyres are these : (369mm)
http://www.sjscycles.co.uk/tyres-17-(369)-dept193_pg1/
An odd Moulton size, good luck finding a tyre.

rgds, sreten.