Search found 120 matches

by seph
17 Aug 2020, 2:02pm
Forum: Bikes & Bits – Technical section
Topic: Tandem frame flex + sturmey
Replies: 13
Views: 491

Re: Tandem frame flex + sturmey

Vince https://colwoodwheelworks.co.uk/ is a mine of information, and spares, for all things Sturmey.
Worth a try
by seph
2 Aug 2020, 10:27am
Forum: Does anyone know … ?
Topic: Steel molecules - do they get tired?
Replies: 33
Views: 903

Re: Steel molecules - do they get tired?

I agree that the terms used are not important here. But.... ...At a general sort of a level... Metal molecules is incorrect because of the type of bonding present. Non metals bond covalently, by sharing electrons, in materials like carbon dioxide and water. These small entities are molecules and hav...
by seph
22 Jul 2020, 9:25pm
Forum: Does anyone know … ?
Topic: Rebuilt sturmey archer hubs
Replies: 7
Views: 360

Re: Rebuilt sturmey archer hubs

...and sjsc have NOS hubs, it would be easy to swap the internal into a 40 hole shell...
https://www.sjscycles.co.uk/hubs-intern ... -hole-nos/
A brand new hub :D
by seph
22 Jul 2020, 9:21pm
Forum: Does anyone know … ?
Topic: Rebuilt sturmey archer hubs
Replies: 7
Views: 360

Re: Rebuilt sturmey archer hubs

No personal experience, but you could ask this chap..
https://colwoodwheelworks.co.uk/courses ... er-course/
He certainly services/ fixes them. Could teach you how to as well :D
by seph
20 Jul 2020, 11:06pm
Forum: Bikes & Bits – Technical section
Topic: Alan millyard bicycle
Replies: 6
Views: 359

Alan millyard bicycle

I’ve watched a few YouTube videos about mr millyards motorcycle creations, but I didn’t know he had built up any bikes... https://www.youtube.com/watch?v=iUak9sqJmnM I love the clever concealed transmission! I’m sure there must be some downsides, but his ability to turn his imagination into reality ...
by seph
19 Jul 2020, 10:16pm
Forum: Bikes & Bits – Technical section
Topic: Drum braked rear hub for fixed gear
Replies: 11
Views: 427

Re: Drum braked rear hub for fixed gear

required.

If you want this functionality, I suggest that you use a fixed/free rear hub, fitted with a screw-on drum brake, such as a Kuwahara.


Karasawa https://www.sjscycles.co.uk/brakes/kara ... aces-arai/ Interesting...
by seph
19 Jul 2020, 10:01pm
Forum: Bikes & Bits – Technical section
Topic: Drum braked rear hub for fixed gear
Replies: 11
Views: 427

Re: Drum braked rear hub for fixed gear

Interesting idea... https://www.ebay.co.uk/itm/Sturmey-Archer-Alloy-Rear-Drum-Brake-Hub-Singlespeed-X-RD-119mm-OLD-/202810181390?hash=item2f386dc70e This has the brake, but is for single speed... How about spinning on a fixed cog and using an old bb lock ring to help keep it in place? As described h...
by seph
18 Jul 2020, 8:11am
Forum: Bikes & Bits – Technical section
Topic: Changing tyres!
Replies: 25
Views: 772

Re: Changing tyres!

[quote][/Agreed GP5000 are wonderfully fast and supple tyres. I love them. If you ride roads with lots of trash and flints be warned that they may not last well. I typically get around 1000 miles out of one before it gets terminally cut. For me it's a summer-only tyre. Michelin Pro4 Endurance is not...
by seph
17 Jul 2020, 6:13pm
Forum: Touring & Expedition
Topic: Bike Fitting for Touring - Bodge vs Bespoke
Replies: 63
Views: 2660

Re: Bike Fitting for Touring - Bodge vs Bespoke

I used a kona hybrid,(the yee ha..) http://www.classickona.com/oldgold/2k/images/2k-yeeha.jpg As a tourer for years. It was great. It still is, doing service with studded tyres on winter commutes and as a proto gravel bike in summer. It’s 21 this year :D It’s mtb heritage meant a sloping top tube, l...
by seph
15 Jul 2020, 8:05pm
Forum: Does anyone know … ?
Topic: Charity Cycle Challenge
Replies: 13
Views: 554

Re: Charity Cycle Challenge

Great idea! Go for it! As for what is possible, how daft do you want to get?! I love 24 hour or so rides (400km, 250miles)... riding all night is great fun. I ride them as Audax rides, Google Audax UK for long distance stuff, Or check https://yacf.co.uk/forum/index.php?board=17.0 for lots of long di...
by seph
22 Jun 2020, 5:13pm
Forum: Bikes & Bits – Technical section
Topic: "These headsets last forever"?
Replies: 84
Views: 2514

Re: "These headsets last forever"?

I’m currently trying a messy compromise with my Campagnolo Record and changing the grease often. That hasn’t stopped the familiar witness marks from showing up on the races. For whatever reason, I have not had this problem to the same extent with threaded headsets. Why might that be? (I’ve had othe...
by seph
13 May 2020, 9:11pm
Forum: Does anyone know … ?
Topic: Indoor training beginner - tyre questions!
Replies: 2
Views: 180

Re: Indoor training beginner - tyre questions!

Blimey, 34 quid for a tyre for the turbo :shock:
Just use an old tyre (most cyclists have a few kicking about..) ...failing that, just get a cheapie like some here https://www.planetx.co.uk/c/q/wheels-an ... -and-tubes
You’ll have to do a lot of turbo training before you wear it out!
by seph
26 Feb 2020, 10:04pm
Forum: Bikes & Bits – Technical section
Topic: Triple chain set advice please
Replies: 27
Views: 1656

Re: Triple chain set advice please

Yes, it will be fine. You may have to move the front derailleur down a smidge.

I’d stick with the 12/13 to 26 cassette. The smaller jumps between gears help to maintain a smooth cadence.

Look at the SRAM PG850 cassettes, 12-26. They’re about 100g lighter than the Shimano ones.