Recent Posts

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51
Thorn General / Re: Bike identification
« Last post by UKTony on May 16, 2026, 08:38:28 PM »
Alternatively, here’s a screen shot of just the Sport Tour matrix, maybe too blurred..
52
Thorn General / Re: Bike identification
« Last post by UKTony on May 16, 2026, 08:13:38 PM »
Hope the attached pdf is readable, size matrix for Raven Tour and Sport Tour,
53
Wheels, Tyres and Brakes / Alternative to Andra 30 rims
« Last post by Andyb1 on May 16, 2026, 07:48:58 PM »
My 32 spoke 26 inch Raven rear rim is wearing and I will need to replace it soon.   SJS are local and will do the work and are suggesting an Andra 30 rim.  I am just wondering what else is available?  The all up weight of the bike is 110kg max with me, touring gear, food and water so not too much load and I use tyres between 1.75” and 2.0” run at fairly low pressures……..so a rim of around 22mm width seems about right.
I am sure an Andra 30 rim would do the job fine but they seem a bit heavy at 750g.

With the wheel rebuild I was also going to fit the rohloff hub rings, but at 110kg max I do not know if they are really required?  I would really like to keep the wheel weight down.

Thanks
AndyB1
54
Thorn General / Re: Bike identification
« Last post by deejayen on May 16, 2026, 07:44:24 PM »
Thanks again, geocycle.

I'm about 6'.

Is there a geometry chart for this model?  I came across some information, but the frame size details were in a PDF which didn't download for me.
55
General Technical / Re: Fitting a Bor Yeuh Front Low Rider Rack
« Last post by mickeg on May 16, 2026, 06:27:52 PM »
On this forum, photos are supposed to be less than a half meg in memory size.  Too big and it will not let you post them.  I usually use a 16 megapixel camera, I find that if I photo reduce a photo at 20 percent, it easily loads onto the website.

That rack looks a lot like a copy of the early Blackburn racks from years ago.  I think you just have to live with the forward part being spaced out further than the rear.  I would hesitate to try to bend that front arch so that it holds the front sides closer together, as I have no clue if that aluminum alloy is hard enough to be weakened by bending it or not.

I would not space the rear out that far as you have in the photos.  If you used spacers or extra nuts on the bolts to space it out that far, you risk bending the bolts if you have a pair of heavy panniers and hit a big bump.

That said, if your panniers were quite light in weight, then having the rear spaced out that far might not be a problem.
56
General Technical / Fitting a Bor Yeuh Front Low Rider Rack
« Last post by AdrianStone on May 16, 2026, 04:32:41 PM »
Would anyone have a photo they could post of their rack fitted in close up please?

I'm trying to fit one to an early Club Tour and not doing a very good job of it!

The front of the rack appears to be quite a lot wider that the rear (of the front of the rack), the un horizontalness I can live with!  Thanks

Photos here... no idea how to post them to the forum direct, much too complicated

https://www.cyclechat.net/threads/help-trying-to-fit-a-low-rider-front-rack.310914/
57
Thorn General / Re: Bike identification
« Last post by geocycle on May 16, 2026, 08:50:08 AM »
Ah yes it’s black, for some reason it showed as dark purple on my screen. Thorn did also offer a low decal option as well.

In terms of size, if it is the 537L I have one and am 5’9” to give you a ballpark idea.
58
Rohloff Internal Hub Gears / Re: Fitting front Hebie Chainglider 38t
« Last post by mickeg on May 15, 2026, 09:24:58 PM »
The item you called a covering ring, I usually call that a bash guard.  Don't discard it, if the chainglider does not work out you might want to use the bash guard again.

59
Thorn General / Re: Bike identification
« Last post by deejayen on May 15, 2026, 09:16:06 PM »
Thanks very much!

It does look like that's it.

i'm just in the early stages of thinking about a new bike, and that one is probably too small, plus it's miles away from me.
60
Thorn General / Re: Bike identification
« Last post by PH on May 15, 2026, 08:10:32 PM »
I'd agree with geocycle that it looks like a Raven Sports Tour, I think that's the only Raven with the brakes on the back of the fork, but it was possibly always that colour. Thorn included a stealth black version for a while, I don't thing I've seen one (maybe because it is that stealth) but there was one advertised here a couple of years ago:
https://thorncyclesforum.co.uk/index.php?topic=14974.msg112886#msg112886
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