Cycling UK Forum

Thorn are a law unto themselves when it comes to frame sizing. Their frames are generally sized by virtual top tubes and the numbers don't necessarily translate to the top tube size in millimetres. S & L refer to short and long virtual top tube models. As Brucey says the sizes are explained in t...

Many bags use the Rixen & Kaul mounting system. It's available with an extension fitting which should avoid any conflict with your butterfly bars. Incidentally the R&K fitting is also compatible with Ortlieb bags.

Computers that measure speed and cadence generally have a combined sensor that mounts on the chainstay. It should be easier to get the correct sensor to magnet distance with this arrangement.

Another possibility is Kelly Take Offs. https://www.sjscycles.co.uk/gear-spares/kelly-take-off-gear-lever-adaptors-per-pair/ If you change your mind about replacing like for like the latest Sora R3000 9 speed STI's aren't too pricey if ordered from Germany and they don't have washing lines. https://...

I greatly regret not buying a Robens Lakeshore tent when I had the opportunity a couple of years ago. Sadly Robens seem to have discontinued this model. Tunnel style tents have a spacious feel and make good use of the available headroom. The Lakeshore is a three man tent but would make a roomy livin...

The Topeak beam wrench is very good. I've a selection of mechanical types from ¼” to ½” drive but I quite like the beam type torque wrenches. They offer good value, seem accurate enough for most occasions and are pretty reproducible. You need to pay a lot more for a decent mechanical type and calibr...

For those of you who missed this the first time around its on BBC News channel today at 3.30 pm. Also available on iPlayer.

Something to relieve the boredom of lock-down

I built a lightweight tourer come audax bike very similar to your proposed build using a MK IV Thorn Club Tour frame. As others have said it's the ability to take wider tyres that gives these frames their versatility. In audax style I run the bike with lightweight wheels and 28mm slick tyres and for...

Some downtube cable stops have cam action lever adjusters with indents which can be used to adjust trim. I've only ever seen this feature for the rear dérailleur but I don't see why it wouldn't work on the left hand boss, albeit the other way up. https://sprockets.uk.com/downtube-cable-stop-adjuster...

The fire hazard of a solvent/fuel is defined by it's flash point. Solvents/fuels with flash points lower than 37.8°C (100°F) are designated as flammable. Solvents/fuels with flash points above this temperature are designated combustible. Petrol has a flash point of minus 45°C Moreover its vapour is ...

Yes, you should use position 2, the lower pair of holes. The screws should also exit through the lower pair of holes.

Edit to add:-

I assume that the screws should exit through the lower holes but its possible that the holes are drilled on the diagonal, in which case the reverse would be true

However, it got nobbled a few years back when I switched to Win 7, gave away my old XP machine to an elderly relative, then found that support for the Minolta disappeared like a puff of smoke when they were taken over so couldn't get it to work on Win 7, even trying all of the suggestions found on ...

No shortage of advice so far and at the risk of adding to the confusion here's my two pennyworth. It should be possible to extract your bike from the turbo without resorting to hacksaws or angle grinders. I suspect that what has happened is that the end of the rear axle quick release has become jamm...

A route that I've recommended on here before is the B9176 Struie road. It's an alternative to your route between Bonar Bridge and Alness using the A836. Follow the A836 south from Bonar Bridge and turn right onto the B9176 about 3 miles after Ardgay. Rejoin your route (B817) just beyond Alness. Ther...

And you wash your hands then what do you use to turn the tap off that you turned on with dirty hands? Unless it is an auto tap. Yes, that's another daft thing. I suppose you wash the tap as well as your hands. Many hospitals and surgeries have installed 'elbow taps' - taps with long levers which ca...