Search found 653 matches

by speedsixdave
8 Mar 2019, 9:27pm
Forum: Bikes & Bits – Technical section
Topic: Moulton SST -- reasons (not) to buy?
Replies: 165
Views: 6833

Re: Moulton SST -- reasons (not) to buy?

What are these "racing" Moultons like climbing in and out out of Millook in North Cornwall? I managed the double chevrons in bottom gear - 34/28 and SA1st = 16.5" but it was a struggle. Done it before on Mercian with (only) bottom 30/30 = 27" reasonably easily. I agree that Moul...
by speedsixdave
7 Mar 2019, 10:56pm
Forum: Bikes & Bits – Technical section
Topic: Moulton SST -- reasons (not) to buy?
Replies: 165
Views: 6833

Re: Moulton SST -- reasons (not) to buy?

Another interesting but ultimately fairly misleading experiment is The Cattle Grid Test. Go for a ride with a buddy with one of you on a big-wheel bike. Approach a cattle grid side by side at roughly the same speed, then both freewheel over the grid. See who has maintained their speed better on the ...
by speedsixdave
7 Mar 2019, 10:03pm
Forum: Bikes & Bits – Technical section
Topic: Moulton SST -- reasons (not) to buy?
Replies: 165
Views: 6833

Re: Moulton SST -- reasons (not) to buy?

Does anyone know what sort of tyres John Woodburn used for his record-breaking rides back in the day? If they were silk tubulars with a thin glued-on tread, that would have gone a long way to reducing the difference to larger-wheeled machines. Tubs, but probably not silk. There were junior tubs aro...
by speedsixdave
4 Mar 2019, 10:29pm
Forum: Bikes & Bits – Technical section
Topic: Moulton SST -- reasons (not) to buy?
Replies: 165
Views: 6833

Re: Moulton SST -- reasons (not) to buy?

While I'm ranting I might as well quote myself. I have owned a few Moultons and I think as a do it all bike they are fantastic. My pride and joy is my AM-18, it is off the road while all the salt is down but I can't wait be be riding it again in the next few months. The downside about Moultons are ...
by speedsixdave
4 Mar 2019, 9:50pm
Forum: Bikes & Bits – Technical section
Topic: Moulton SST -- reasons (not) to buy?
Replies: 165
Views: 6833

Re: Moulton SST -- reasons (not) to buy?

Hello everyone, Does anyone have anything positive (or negative) to say about buying a Moulton? Sorry, rather late to this party, but yes. Looking forward to contributions from anyone with experience of riding Moultons, or knowledge of the equipment spec, good or bad. I've had an APB, a TSR2 and no...
by speedsixdave
4 Mar 2019, 8:05pm
Forum: Bikes & Bits – Technical section
Topic: Moulton SST -- reasons (not) to buy?
Replies: 165
Views: 6833

Re: Moulton SST -- reasons (not) to buy?

the front join has been a source of trouble in the past; IIRC the moulton Midi ( a Raleigh cost-cutting confection) had no front suspension and the frames broke at the front joint. Raleigh's solution? - a pressed steel external reinforcement that you bolted on. Unbelievable…. https://bootiebike.com...
by speedsixdave
31 Oct 2018, 1:07pm
Forum: Bikes & Bits – Technical section
Topic: Moulton Mini for distance riding, Advice Required.
Replies: 15
Views: 727

Re: Moulton Mini for distance riding, Advice Required.

good work fella! one note of caution is that you have the series 1 swingarm there. These quite often start to crack if you have a high load/lots of miles. There are folk who repair/reinforce them when the need arises. As you note Brucey, Series 1 rear forks were underbuilt and sometimes cracked, he...
by speedsixdave
30 Oct 2018, 8:51pm
Forum: Bikes & Bits – Technical section
Topic: Moulton Mini for distance riding, Advice Required.
Replies: 15
Views: 727

Re: Moulton Mini for distance riding, Advice Required.

I don't think Minis ever had the front rack mounts. However checking the tyre size on the side of the tyre should answer your question. Assuming it is 16x1 3/8 / 349, there are plenty of fairly decent tyres available but the straightforward choice is between Schwalbe Marathons for utility riding and...
by speedsixdave
24 Oct 2018, 10:18pm
Forum: Bikes & Bits – Technical section
Topic: How important is chainline?
Replies: 25
Views: 1485

Re: How important is chainline?

Thanks very much chaps, some serious food for thought there. I will try the chainring on the other side of the spider although it will offend my aesthetic sensibilities! Brucey - will also check for trueness and track when I get the chance. I shall report back when further progress is made. However ...
by speedsixdave
21 Oct 2018, 9:15pm
Forum: Bikes & Bits – Technical section
Topic: How important is chainline?
Replies: 25
Views: 1485

How important is chainline?

Hi all, Further to this post about the bottom bracket of my new old Jack Bell frame, I've been doing some fettling and trying some bits out. The short precis is that this unusual frame has a bottom bracket that I do not really want to change unless I have to. I have dug out a suitable TA crank that ...
by speedsixdave
20 Oct 2018, 10:17am
Forum: Bikes & Bits – Technical section
Topic: !965 moulton speedsix
Replies: 28
Views: 1174

Re: !965 moulton speedsix

Very nice! If you haven't done so already, do join the Moulton Bicycle Club . This gets you access to a wealth of knowledge and spare parts, and the opportunity to go to the twice-annual club meetings to show off your fantastic bike to other people who will appreciate it. There are various groups on...
by speedsixdave
13 Oct 2018, 12:47pm
Forum: Bikes & Bits – Technical section
Topic: ISO & JIS tapers
Replies: 8
Views: 564

Re: ISO & JIS tapers

the rear dropouts appear to be steel, screwed into the chainstays and bonded to the seatstays, a few inches up. Have you wafted a magnet over the entire frame? I'd guess that various parts (eg the head tube cluster and maybe the seat cluster) may be steel, with the aluminium tubes bonded into the '...
by speedsixdave
13 Oct 2018, 12:07pm
Forum: Bikes & Bits – Technical section
Topic: ISO & JIS tapers
Replies: 8
Views: 564

Strange & unusual frame, was ISO & JIS tapers

Here it is! All I know about it is it was made by one Jack Bell of Cheshire, some time prior to June 2018 when I bought it at the Eroica. It caught my eye as I thought it was wood, but in fact it's wood veneer over an entirely aluminium frame. The fork is steel and fairly conventional. It has some i...
by speedsixdave
9 Oct 2018, 9:11pm
Forum: Bikes & Bits – Technical section
Topic: ISO & JIS tapers
Replies: 8
Views: 564

Re: ISO & JIS tapers

Thanks very much gents. I should have looked at Sheldon at the outset, of course. I've just nipped to the shed and had a quick measure which came up at around 12.8mm, so more investigation needed there I think. Brucey, I agree with you completely that trying to get something to fit an existing spind...
by speedsixdave
7 Oct 2018, 8:15pm
Forum: Bikes & Bits – Technical section
Topic: ISO & JIS tapers
Replies: 8
Views: 564

ISO & JIS tapers

Hi knowledgeable folk, I bought a strange and unusual second-hand frame earlier this year, which came with a square taper bottom bracket installed. What this BB is and how it was installed is a bit of a mystery, and as it seems to run smoothly I have no intention of trying to replace it at the momen...