Search found 213 matches

by Steveo2020
19 Sep 2016, 8:04am
Forum: Bikes & Bits – Technical section
Topic: UniCrown Forks
Replies: 13
Views: 1736

Re: UniCrown Forks

Robin Mather built a fixed wheel randonneur bike for an exhibition at The Design Museum earlier this year which had a unicrown fork. I think all of his bikes are now tig welded too.

Cheers
by Steveo2020
11 Sep 2016, 10:37pm
Forum: Bikes & Bits – Technical section
Topic: Reynolds 653
Replies: 10
Views: 3086

Re: Reynolds 653

In 1995 I bought an Orbit Illusion 653 racing bike. I had been riding a 531 main tubes British Eagle bike until then. It had the painted 105 group set of the era, nice Cinelli bars and stem, Campag hard anodised rims and Conti Grand Prix 19mm tyres. Buying it was one of the all time best days of my ...
by Steveo2020
14 Jul 2016, 8:13pm
Forum: Bikes & Bits – Technical section
Topic: TdeF; unreliable gears? (spoiler for 13/7/16)
Replies: 84
Views: 4711

Re: TdeF; unreliable gears? (spoiler for 13/7/16)

I remember Bradley wiggins having some kind of electronic shifting problem in 2012 or 2013. The schleck / contador imbroglio in 2009 was mechanical to be fair. On the whole it seems to me that adding electronics to a mechanical system just adds another layer of things to go wrong - the only simplifi...
by Steveo2020
25 Apr 2016, 8:22pm
Forum: Bikes & Bits – Technical section
Topic: Proposed 'Ride Stiffness Scale'
Replies: 26
Views: 986

Re: Proposed 'Ride Stiffness Scale'

+3 for oversize tubes +2 for a frame designed to carry a load +4 for disc brake mounts +2 for a 'compact' frame design +3 per 1/8" of steerer dia over 1" (at the fork crown) +1 for every 1" less of head tube under 7" -1 for every 1" more of head tube over 7" +2 for eve...
by Steveo2020
24 Apr 2016, 2:47pm
Forum: Bikes & Bits – Technical section
Topic: Proposed 'Ride Stiffness Scale'
Replies: 26
Views: 986

Re: Proposed 'Ride Stiffness Scale'

Hi Interesting Would it be worth distinguishing between lateral and vertical compliance? On the basis that lateral compliance might induce 'planing' type pedalling effects whereas fat tyres may only improve vertical compliance. There was a Varonha bike at the Bespoked show last week built with non-o...
by Steveo2020
27 Mar 2016, 7:41pm
Forum: Does anyone know … ?
Topic: Is there anyone else who is comfortable on 23/25 mm tyres?
Replies: 49
Views: 2950

Re: Is there anyone else who is comfortable on 23/25 mm tyre

Yes, but. I do lots of riding on 23mm tyres. My favourite bike for sunny days doesn't have clearance for anything else. I have another bike fitted with some 32mm Compass (the Bicycle Quarterly sister company) extra light tyres. They are amazingly supple and give a lovely ride - they make a roughish ...
by Steveo2020
26 Mar 2016, 8:35pm
Forum: Bikes & Bits – Technical section
Topic: Lowest friction rear cable routing
Replies: 11
Views: 1475

Lowest friction rear cable routing

Hi all Most modern bikes, and most of mine in recent times, have interrupted rear cable housing. A stop at the start of the top tube, then bare cable, then another section of housing leading to the brake. I have always assumed this to be the lowest friction arrangement, because there is less housing...
by Steveo2020
2 Mar 2016, 10:21pm
Forum: Bikes & Bits – Technical section
Topic: Shimano 'Metrea' Groupset
Replies: 65
Views: 5136

Re: New Shimano 'Metrea' Groupset

Sante! I had forgotten about it but seeing that catalogue brings it all flooding back. I must confess that my younger self was quite taken with it! There was, I think, an all white bike with the full Sante group set in the 1988 Freewheel catalogue. I spent many happy hours admiring it :oops:
by Steveo2020
22 Feb 2016, 8:01pm
Forum: Bikes & Bits – Technical section
Topic: Servicing DA 7900 hubs
Replies: 24
Views: 3015

Re: Servicing DA 7900 hubs

Once I saw a video of an empirical test, a hub with the bearings set right, then squeezed in a vice, it won't get any friction unless a lot of pressure (far more than what a QR skewer does) was done by the vice. The compression generated by the skewer could increase the pressure on the bearings on ...
by Steveo2020
7 Feb 2016, 3:57pm
Forum: Does anyone know … ?
Topic: Severn Crossing by cycle
Replies: 19
Views: 4823

Re: Severn Crossing by cycle

I have never done it when road is shut but the wind has never been a major problem because you don't need to worry about being blown into the path of a car. On the other hand I had to walk my bike over the Clifton suspension bridge yesterday because it was impossible to ride in a straight line, and ...
by Steveo2020
19 Jan 2016, 8:14pm
Forum: Bikes & Bits – Technical section
Topic: Brucey FAQs...
Replies: 20
Views: 1947

Re: Brucey FAQs...

I echo all of that. I have learned a lot, and - like others - enjoy reading all the contributions pretty much regardless of the relevance of the topic to me. A book would be wonderful - no pressure Brucey :D On a serious note, if someone did for Brucey's posts what Norman Yarvin has done for Jobst B...
by Steveo2020
8 Nov 2015, 7:49pm
Forum: Bikes & Bits – Technical section
Topic: Koolstop pads for CX70 cantis
Replies: 5
Views: 704

Re: Koolstop pads for CX70 cantis

Do you mean CX50? They have a rubber brake shoe instead of a cartridge?
Steve
by Steveo2020
26 Oct 2015, 9:01pm
Forum: Does anyone know … ?
Topic: Are Bicycle Quarterly on to something, or on something?
Replies: 115
Views: 8068

Re: Are Bicycle Quarterly on to something, or on something?

Re books, Bicycle Quarterly, cults and wheel sizes I dug out Tony Oliver's Touring Bikes recently. Always a good read. I was interested to read the following re 650B wheels: "This wheel format is popular amongst Audax riders and long-distance touring cyclists. The wheel being smaller in diamete...
by Steveo2020
26 Oct 2015, 8:53pm
Forum: Bikes & Bits – Technical section
Topic: Custom frame – possibly idle dreaming!
Replies: 86
Views: 3619

Re: Custom frame – possibly idle dreaming!

Whilst we are talking tubing, and going back to one of the OP's original thoughts, I think the choice of tubing will have a big impact on the enjoyment of the frame. I've been thinking about this myself recently, and even started a thread on it. The steel bike I have most enjoyed riding was Reynolds...
by Steveo2020
13 Oct 2015, 8:00pm
Forum: Bikes & Bits – Technical section
Topic: Still possible to build a very light non-oversize frame
Replies: 12
Views: 1137

Re: Still possible to build a very light non-oversize frame

Very interesting Brucey thank you.

So is your view that 753 was perhaps more springy (if that is the right word - higher yield strength I think I mean?) when silver brazed (at relatively low temperature) than, say, an 853 frame would be after joining by TIG welding?

Cheers