Search found 35839 matches

by Brucey
13 Nov 2019, 11:38am
Forum: Bikes & Bits – Technical section
Topic: 2.4W dynamo hubs
Replies: 60
Views: 1829

Re: 2.4W dynamo hubs

I see. I can envisage them having a whole new, different standard (e.g. like the 1,5W one) but I don't see them revising the extant 3W standard anytime soon. The reason is that if you did so, you would probably render things non-backwardly compatible in an unhelpful fashion, for little gain. In fact...
by Brucey
13 Nov 2019, 11:25am
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 33
Views: 732

Re: [Brompton BWR] Removing left-hand side bearing race?

in the absence of a worn frame or something the only things that affect the running clearance on the RHS between the driver and the frame are - the driver - the (1/4") bearings between the driver and the cone - the cone dimensions - the lockwasher thickness - the locknut thickness So if the cle...
by Brucey
13 Nov 2019, 10:14am
Forum: Does anyone know … ?
Topic: Vintage Bicycle Advertisements; good, bad. ugly...
Replies: 543
Views: 16970

Re: Vintage Bicycle Advertisements; good, bad. ugly...

these days it would be 17.99 rather than 17.95....

cheers
by Brucey
13 Nov 2019, 10:00am
Forum: Bikes & Bits – Technical section
Topic: [Brompton BWR] Removing left-hand side bearing race?
Replies: 33
Views: 732

Re: [Brompton BWR] Removing left-hand side bearing race?

moving the internal is a) a bad idea and b) won't achieve anything. the correct setting for the RH cone is 1/2 turn from tight when you are setting the hub up; you won't change the running clearance on the RHS by altering this. If the clearance is smaller than normal for some reason, (Q; is the tab ...
by Brucey
13 Nov 2019, 9:36am
Forum: Bikes & Bits – Technical section
Topic: Belt drive instead of chain..why? why not?
Replies: 42
Views: 1419

Re: Belt drive instead of chain..why? why not?

Re A11 hubs with a squashy feel; I've put a few miles onto A11 hubs using chain drives and (especially on large wheeled machines) they feel squashy to me, in some of the lower gears especially. Unfortunately I don't think it is the sort of squashy that conserves energy; I suspect that the majority o...
by Brucey
13 Nov 2019, 12:57am
Forum: Does anyone know … ?
Topic: Vintage Bicycle Advertisements; good, bad. ugly...
Replies: 543
Views: 16970

Re: Vintage Bicycle Advertisements; good, bad. ugly...

https://library.duke.edu/rubenstein/scriptorium/eaa/ephemera/A00/A0055/A0055-05-150dpi.jpeg seventeen dollars was not a vast sum of money at the time, so machines of this type were within reach of many people. Not very many years earlier similar looking machines had sold for about ten times as much...
by Brucey
13 Nov 2019, 12:26am
Forum: Bikes & Bits – Technical section
Topic: Dynamos - Hub or Bottle?
Replies: 170
Views: 6711

Re: Dynamos - Hub or Bottle?

FWIW I've done a little more digging and here http://www.enhydralutris.de/Fahrrad/Beleuchtung/node71.html the circuits for SW-NX10 and SW-NX30 (as supplied with most shimano hub generators for some years) are laid bare. My German ain't great (and nor is my electronics, ahem) but it looks like SW-NX1...
by Brucey
12 Nov 2019, 10:31pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine DI2 Issues
Replies: 10
Views: 320

Re: Shimano Alfine DI2 Issues

good point; the guard is meant to protect the cassette joint on normal hubs I presume.

cheers
by Brucey
12 Nov 2019, 10:26pm
Forum: Bikes & Bits – Technical section
Topic: Dynamos - Hub or Bottle?
Replies: 170
Views: 6711

Re: Dynamos - Hub or Bottle?

its worth mentioning that I have seen a few bottle dynamos break where the pressed steel bracket is used to mount the thing. I don't know if the dynamos in question had been repeatedly 'set' into a new position or if the nasty sharp edges on the bracket had enough stress concentrations in them to cr...
by Brucey
12 Nov 2019, 10:02pm
Forum: Bikes & Bits – Technical section
Topic: Wellgo LU-974 pedals - which is front?
Replies: 5
Views: 254

Re: Wellgo LU-974 pedals - which is front?

also;

- if there is a slot for a toe strap, it will be at the back of the pedal, not the front

cheers
by Brucey
12 Nov 2019, 3:05pm
Forum: Bikes & Bits – Technical section
Topic: Belt drive instead of chain..why? why not?
Replies: 42
Views: 1419

Re: Belt drive instead of chain..why? why not?

I think the carbon-reinforced belts are often both stronger and stiffer than many others. However they are pricey too. Carrying spare belts on tour is not a bad idea (they are not heavy) but is complicated by the fact that they must be stored/carried in such a way as there is zero danger of creasing...
by Brucey
12 Nov 2019, 2:57pm
Forum: Bikes & Bits – Technical section
Topic: Downtube Shifter
Replies: 20
Views: 916

Re: Downtube Shifter

As an addition to this question. I've found an old Sachs Huret friction shifter in the shed. It's a band-on type though. If I take the band-on off will it be okay to attach to the frame's braze on? sometimes, but not always. There are at least four possibilities; 1) the lever is meant to mount to a...
by Brucey
12 Nov 2019, 2:45pm
Forum: Bikes & Bits – Technical section
Topic: Shimano Alfine DI2 Issues
Replies: 10
Views: 320

Re: Shimano Alfine DI2 Issues

ah, so the servo was moving then.....

Needless to say the plastic guard is meant to stop the chain from derailing and chewing the servo unit to bits. Lets hope that doesn't happen....

cheers
by Brucey
12 Nov 2019, 2:41pm
Forum: Bikes & Bits – Technical section
Topic: Dynamos - Hub or Bottle?
Replies: 170
Views: 6711

Re: Dynamos - Hub or Bottle?

Whoops, blasted that comment out of the water them. Never new Union did anything other than bottle Dynamos. I had a bottom bracket (or roller) Dynamo once, it produced light in quantity but my recollection is that it slipped, got covered in crude and drove thorns/ glass into my tyres - didn’t use i...
by Brucey
12 Nov 2019, 2:22pm
Forum: Bikes & Bits – Technical section
Topic: Dynamos - Hub or Bottle?
Replies: 170
Views: 6711

Re: Dynamos - Hub or Bottle?

….BTW, SUNUP recently came up with a new model called "SpinUP" that can be mounted on the opposite side of the disk. https://4.bp.blogspot.com/-5ig4vn7IeHg/XcqpaxQdalI/AAAAAAAAcro/3KUrCwVFv8MRtHKiOcatBUfNbtiTAQUmACLcBGAsYHQ/s320/sunup.jpg I didn't know that; crikey, the Dodo still lives! ...