Search found 1297 matches

by rogerzilla
18 May 2020, 11:53am
Forum: Bikes & Bits – Technical section
Topic: Sturmey archer experts
Replies: 16
Views: 4154

Re: Sturmey archer experts

The last UK hubs were made on worn-out kit. AWs still work despite this. 1950s stuff is very good by comparison. The Sunrace Taiwanese stuff is made better but designed worse. Rattling NIG 3-speeds, S3X fixed hubs that slip and where the sun dogs wear out, axles for which no proper indicator exists.
by rogerzilla
17 May 2020, 5:51pm
Forum: Bikes & Bits – Technical section
Topic: is my tandem frame scrap?
Replies: 44
Views: 2003

Re: is my tandem frame scrap?

It's scrap. Aluminium frames aren't meant to be fixed. It may be one of the grades that doesn't need post-weld heat treatment but that's assuming controlled factory conditions. if it is welded, it will probably break shortly afterwards at the weld.
by rogerzilla
17 May 2020, 5:47pm
Forum: Campaigning & Public Policy
Topic: More space on trains?
Replies: 30
Views: 1013

Re: More space on trains?

The new Hitachi Class 800 trains have more or less killed one-way rides around here. There are usually 4 bike spaces but in practice you can only fit 2 bikes because the compartments are so narrow; and I'm talking two drop-bar touring bikes, not MTBs with massive riser bars. A couple of hipster fixi...
by rogerzilla
17 May 2020, 5:41pm
Forum: Bikes & Bits – Technical section
Topic: My Moulton TSR - a love story?
Replies: 101
Views: 2986

Re: My Moulton TSR - a love story?

Ever heard of the Marlborough Downs? This one's a bit of a torque challenge on a fixie:

https://cyclinguphill.com/100-climbs/dragon-hill-road/

I never need to clean any of the bikes that aren't ridden in the wet. Wipe the dust off, clean the chain, that's it.
by rogerzilla
17 May 2020, 5:23pm
Forum: Bikes & Bits – Technical section
Topic: My Moulton TSR - a love story?
Replies: 101
Views: 2986

Re: My Moulton TSR - a love story?

Wiltshire. It'll go up a 1 in 6 ok, although the bobbing action gets annoying even with the "race spring" and a fair bit of friction in the pivots. The mudguards didn't suit it as a fixie, and I have other bikes for wet weather. In fact, I generally reserve one bike for that and it gets cl...
by rogerzilla
17 May 2020, 5:01pm
Forum: Bikes & Bits – Technical section
Topic: My Moulton TSR - a love story?
Replies: 101
Views: 2986

Re: My Moulton TSR - a love story?

TSRs have horizontal dropouts and a unified rear triangle, so are perfect for fixing. 56 x 15 so the sprocket wears evenly.
by rogerzilla
17 May 2020, 4:59pm
Forum: Bikes & Bits – Technical section
Topic: steering - resistance to turning
Replies: 15
Views: 891

Re: steering - resistance to turning

Slow steering (like a supertanker when you go into a tight corner) means there isn't enough offset for the head angle being used. This sometimes occurs because the steerer isn't brazed into the crown straight. I have had two Holdsworth (may be a coincidence) forks where the steerer is slightly angle...
by rogerzilla
17 May 2020, 4:47pm
Forum: Bikes & Bits – Technical section
Topic: My Moulton TSR - a love story?
Replies: 101
Views: 2986

Re: My Moulton TSR - a love story?

There's one way to solve the excess weight of a TSR, eliminate the fiddly cable connectors and generally make it a much more responsive machine. https://live.staticflickr.com/65535/48735795583_1dacf33a59_b.jpg 20190915_095811(0) by rogerzilla , on Flickr https://live.staticflickr.com/65535/484247767...
by rogerzilla
17 May 2020, 4:43pm
Forum: Bikes & Bits – Technical section
Topic: Shimano M324 pedal prob
Replies: 63
Views: 2986

Re: Shimano M324 pedal prob

I used those just to make the bike legal at night. One was ripped off in a head-on collision with a dopey oncoming cyclist (I hate cyclepaths) and I never replaced them after that.
by rogerzilla
17 May 2020, 4:40pm
Forum: Bikes & Bits – Technical section
Topic: Saddle polish
Replies: 7
Views: 378

Re: Saddle polish

A friend had a very dried-up and tired-looking Rolls. Although it's only a thin leather cover, he used Proofide and rode it lots, and it looks far better now. The Proofide doesn't do the polishing, the riding does (same with a Brooks).
by rogerzilla
17 May 2020, 4:38pm
Forum: Bikes & Bits – Technical section
Topic: IGH lubrication; a smoking gun.
Replies: 163
Views: 21596

Re: IGH lubrication; a smoking gun.

Here's an obscure one: can the planetary gears of a Sachs Duomatic 102 be lubricated with SRAM IGH grease* (the straw-coloured stuff that comes in a metal toothpaste tube)? Normally there are three types of lubricant in these hubs: 1. Planetary gears: oil - less than with an SA hub, you basically co...
by rogerzilla
8 Sep 2019, 11:26am
Forum: Bikes & Bits – Technical section
Topic: Stripped thread Brompton BWR hub
Replies: 15
Views: 796

Re: Stripped thread Brompton BWR hub

On Sachs Torpedo 3-speeds, the key often snaps in half. This immobilises the bike as freewheeling causes the chain to tangle. Knock-off SA indicators often won't thread into a good key becauae the tapered thread on the indicator is so badly forned. There's a reason why some stuff is cheap, and most ...
by rogerzilla
8 Sep 2019, 11:20am
Forum: Bikes & Bits – Technical section
Topic: Brompton H6L IGH oil lubrication
Replies: 4
Views: 434

Re: Brompton H6L IGH oil lubrication

EP oil stinks, assuming it's GL5 and intended for hypoid gears. I use GL4 75W90.
by rogerzilla
26 Aug 2019, 5:34pm
Forum: Bikes & Bits – Technical section
Topic: Moulton TSR rear pivot
Replies: 363
Views: 17676

Re: Moulton TSR rear pivot

I have deliquium's old TSR now. There is no play whatsoever in the rear triangle and I am pumping it with grease regularly. I did dismantle it once, just to have a look. I think it helps if you remove the four Torx screws from the Monosphere housing and work the triangle through a fuller range while...
by rogerzilla
26 Jul 2019, 4:13pm
Forum: Does anyone know … ?
Topic: Roller brake hub
Replies: 8
Views: 2190

Re: Roller brake hub

[XAP]Bob wrote:What’s wrong with a coaster brake?

Brilliant little devices.

They are great for all-weather commuting but they can barely dissipate heat and most designs need to drag a bit in orfer to work. You also have the problem of stopping with the cranks at dead centres, as with a fixie.