Search found 12757 matches

by 531colin
26 May 2020, 12:23pm
Forum: Does anyone know … ?
Topic: Spa XD2 touring triple
Replies: 29
Views: 915

Re: Spa XD2 touring triple

.... the 'hidden' chainring bolt didn't prove an issue with me, I just made a 'special tool' (bit of steel scrap filed to fit) which I place between the crank and the chainring slotted 'nut' and wedge with a small piece of wood - the screw is then easily turned with an Allen key whilst holding the ...
by 531colin
26 May 2020, 11:59am
Forum: Bikes & Bits – Technical section
Topic: Selle SMP saddles
Replies: 58
Views: 1561

Re: Selle SMP saddles

...….I've had about two dozen saddles recently, ... Trig., I think you have had more saddles "recently" that I have had in 60 years. To have had that number of saddles and still be looking for a saddle to solve the problem seems to me what has been described as "a triumph of hope ove...
by 531colin
26 May 2020, 11:49am
Forum: Bikes & Bits – Technical section
Topic: Kona Smoke stem plate bolt replacement
Replies: 8
Views: 229

Re: Kona Smoke stem plate bolt replacement

Stem faceplate bolts are "safety critical" and I would be wary of substituting a brass bolt. The original faceplate bolts are often "specials" where the head is smaller than "standard" for the bolt diameter and takes a smaller Allen key. Photos or links to the actual pa...
by 531colin
25 May 2020, 2:13pm
Forum: Bikes & Bits – Technical section
Topic: Selle SMP saddles
Replies: 58
Views: 1561

Re: Selle SMP saddles

how the bike rides no hands is the acid test of steering geometry for bike design and whether or not an individual bike is straight. so as you say, completely pointless really. I think Chris Froome learned something about riding no handed :roll: Although I don't follow racing, I knew Froome had a b...
by 531colin
25 May 2020, 2:06pm
Forum: Bikes & Bits – Technical section
Topic: Newbie tyre size question
Replies: 10
Views: 265

Re: Newbie tyre size question

Should be right
622 is the bead seat diameter
18 is the rim internal width
25 is the tyre width
So it should be an "OK" fit; ideally a wider tyre, because 25 isn't a lot wider than the rim
by 531colin
25 May 2020, 2:02pm
Forum: Bikes & Bits – Technical section
Topic: Need help choosing a bike
Replies: 15
Views: 558

Re: Need help choosing a bike

Find a straight bit of wood and some string, tape, stuff like that.
Fix the bit of wood to your existing bike seatpost and steerer so its at the height of the top tube on the "large" size, and that will give you a good idea if its too big or not.
by 531colin
25 May 2020, 1:57pm
Forum: Does anyone know … ?
Topic: Advice on next bike
Replies: 2
Views: 154

Re: Advice on next bike

Hi Terry, welcome Can I make an alternative suggestion? Most people I think would prefer to do a 12 mile commute on drop bars; front suspension is not needed on road; and if your elbows hurt on the road bike then its a sign your riding position is wrong. Painful elbows and looking for front suspensi...
by 531colin
24 May 2020, 6:47pm
Forum: Bikes & Bits – Technical section
Topic: Struggling with cantis
Replies: 21
Views: 785

Re: Struggling with cantis

You can't swop the arms left to right. The springs, however, are "handed" . If memory serves (doubtful!) putting the brake "on" winds up the springs, and "off" un-winds them. Sometimes the left and right springs are different colours. Throw away the stupid Shimano M sys...
by 531colin
24 May 2020, 2:41pm
Forum: Bikes & Bits – Technical section
Topic: Anybody follow the fashions for "hybrid" steering geometry?
Replies: 4
Views: 222

Re: Anybody follow the fashions for "hybrid" steering geometry?

Bonefishblues wrote:Whyte are making their hybrids with the same geo as their mtbs. Slackers.

If hybrids are to be ridden with childseats and/or by beginner cyclists, then I think they may have a point.
by 531colin
24 May 2020, 2:38pm
Forum: Bikes & Bits – Technical section
Topic: How to tell the width of a chain without a tool to measure it?
Replies: 20
Views: 762

Re: How to tell the width of a chain without a tool to measure it?

You can measure the width across the pins, which will give you a fairly close approximation of whether it is 1/8 or 3/32. No specific tool needed, but a decent steel rule would be useful.. The SPROCKETS are 1/8" thick. The whole chain is much wider than that! (1/8" is 2 or 3mm just in cas...
by 531colin
24 May 2020, 2:36pm
Forum: Bikes & Bits – Technical section
Topic: Need help choosing a bike
Replies: 15
Views: 558

Re: Need help choosing a bike

Ok, seems like it had best be the old mountain bike for child carrying. Of the second 2 I posted I am seriously considering The Trek FX 3 but I know so little about which components are better and what is preferable in terms of the geometry. Any advice? Its a quick bike on tarmac, also OK for un-ta...
by 531colin
24 May 2020, 2:28pm
Forum: Bikes & Bits – Technical section
Topic: How to tell the width of a chain without a tool to measure it?
Replies: 20
Views: 762

Re: How to tell the width of a chain without a tool to measure it?

Compare the chain by eye to any derailleur chain. It'll be obvious if its 1/8"
by 531colin
24 May 2020, 1:17pm
Forum: Bikes & Bits – Technical section
Topic: Alloy steerer star bung expander
Replies: 21
Views: 557

Re: Alloy steerer star bung expander

Hi guys what’s the easiest way to remove one of these star expanders, any help appreciated I'm a trendy consumer. Just look at my wobbly bog brush using hovercraft full of eels It's easier on a steel forks steerer. You'll have to push the star nut on one side only, to make it flip sideways. Most of...
by 531colin
24 May 2020, 1:11pm
Forum: Bikes & Bits – Technical section
Topic: Anybody follow the fashions for "hybrid" steering geometry?
Replies: 4
Views: 222

Anybody follow the fashions for "hybrid" steering geometry?

I was surprised to find on another thread https://forum.cyclinguk.org/viewtopic.php?f=5&t=137821 that flat-bar hybrid bikes are appearing with what I would regard as race bike steering geometry. (73 deg head, 43mm offset; 72.5 deg head, 50mm offset) Is this a new fashion? It seems to be the exac...
by 531colin
24 May 2020, 1:04pm
Forum: Bikes & Bits – Technical section
Topic: Downtube shifter bosses, have they changed over time?
Replies: 11
Views: 369

Re: Downtube shifter bosses, have they changed over time?

There is a square bit of the downtube boss measuring just a shade bigger than 12mm square if my recollection is correct. The shiny washer thing has a matching square recess which (should!) fit this. This is the essential bit of the "fit". I don't think its changed ever. (There used to alwa...