Search found 1820 matches

by SA_SA_SA
20 Jan 2020, 5:42pm
Forum: Bikes & Bits – Technical section
Topic: Why do so few rack manufs imitate tubus' triangulation by making platform triangular?
Replies: 6
Views: 387

Re: Why do so few rack manufs imitate tubus' triangulation by making platform triangular?

...Because it makes it difficult to fit a rectangular load, such as a Carradice rack bag. I have a Tubus Vega hanging up redundant on the garage wall due to this ... I didn't think a carrier top that starts wider than a rack lamp (like Spanninga Duxos/ B&M topline etc) would need to narrow so m...
by SA_SA_SA
20 Jan 2020, 5:37pm
Forum: Bikes & Bits – Technical section
Topic: Why do so few rack manufs imitate tubus' triangulation by making platform triangular?
Replies: 6
Views: 387

Re: Why do so few rack manufs imitate tubus' triangulation by making platform triangular?

Bmblbzzz wrote:https://forum.cyclinguk.org/viewtopic.php?f=5&t=132769&hilit=triangulation
!!!
???
This is a different question!! !! !! !! !! !! (I take your exclaimation marks and raise you some more :) )
by SA_SA_SA
20 Jan 2020, 1:29pm
Forum: Bikes & Bits – Technical section
Topic: Why do so few rack manufs imitate tubus' triangulation by making platform triangular?
Replies: 6
Views: 387

Why do so few rack manufs imitate tubus' triangulation by making platform triangular?

Why do so few rack manufs imitate tubus' triangulation by making the top platform triangular (like in Tubus Vega)?

it is presumably isn't patentable and is a very elegant minimalist solution to triangulation at lightweight?
by SA_SA_SA
19 Jan 2020, 4:02pm
Forum: Touring & Expedition
Topic: Hotels at motorway services: removal of access to non-motorway traffic?
Replies: 14
Views: 836

Re: Hotels at motorway services: removal of access to non-motorway traffic?

As a regular user of Mill Lane I can assure you there is open access, despite the signs, even the vehicle restriction barriers are not in use.... Thanks all. ...My sister used to work in the restaurant over the top of the motorway. Mid 1960s....... Thanks. I didn't know that was where a 'bridge' re...
by SA_SA_SA
10 Jan 2020, 8:35pm
Forum: Touring & Expedition
Topic: Hotels at motorway services: removal of access to non-motorway traffic?
Replies: 14
Views: 836

Hotels at motorway services: removal of access to non-motorway traffic?

Whilst researching backup hotel locations* for a camping trip last year, I discovered one at Charnock Richard Services but the service area was announcing that the access road from Mill lane was to close later: is this a nation wide policy to exclude non-motorway travellers from motorway service hot...
by SA_SA_SA
10 Jan 2020, 5:37pm
Forum: Bikes & Bits – Technical section
Topic: Hub Dynamo for winter commute.
Replies: 166
Views: 7123

Re: Hub Dynamo for winter commute.

Quickly looking at retail prices for big shielded(approx 7X mm) cartridge bearings, they seem double in price compared to the usual size, so surely not too much extra cost over smaller ones, and surely a cup and cone hub is more expensive to produce (more labour intensive?) so a could a shimano styl...
by SA_SA_SA
9 Jan 2020, 10:49pm
Forum: Bikes & Bits – Technical section
Topic: Hub Dynamo for winter commute.
Replies: 166
Views: 7123

Re: Hub Dynamo for winter commute.

shimano do use cartridge bearings, but not usually in things like hubs or pedals. I suspect that to achieve the same load rating in the bearing, the cartridge bearings in hubs would have to be far bigger and heavier (and more expensive) than those which are used by many other manufacturers. ... Doe...
by SA_SA_SA
9 Jan 2020, 10:31pm
Forum: Bikes & Bits – Technical section
Topic: Hub Dynamo for winter commute.
Replies: 166
Views: 7123

Re: Hub Dynamo for winter commute.

But running the wires under the cone in current shimano hubs surely rather undermines the serviceability of the cup and cone bearings rather a lot: if you go to the trouble of using cup and cone bearings in a generator hub it seems a bit strange to compromise that serviceability by using a design th...
by SA_SA_SA
8 Jan 2020, 9:33pm
Forum: Bikes & Bits – Technical section
Topic: Brompton (narrowed) SA front hub brake: Brucey question?
Replies: 9
Views: 724

Re: Brompton (narrowed) SA front hub brake: Brucey question?

......The Brompton is a folding bike that is meant to be carried by hand too. <1> Every kg you add results in discomfort, i.e. some train or underground stations require you to walk in crowded passages where you will have to hold the bike folded, and to carry more weight for several minutes on a da...
by SA_SA_SA
8 Jan 2020, 9:19pm
Forum: Bikes & Bits – Technical section
Topic: Hub Dynamo for winter commute.
Replies: 166
Views: 7123

Re: Hub Dynamo for winter commute.

it would be possible to have a cartridge bearing that could be installed/ removed over a compact connector assembly if you put your mind to it. That was what I hoped. But smaller = lighter = cheaper when it comes to bearings.... Drat.... is it case of spoiling a hip for a ha'pence of tar or would t...
by SA_SA_SA
7 Jan 2020, 9:41pm
Forum: Bikes & Bits – Technical section
Topic: Hub Dynamo for winter commute.
Replies: 166
Views: 7123

Re: Hub Dynamo for winter commute.

Given that hub generators have large diameter flanges/shells surely, for cartridge bearing hubs, surely using larger diameter bearings on both sides would only be a benefit (and perhaps allow a design in which bearing change did not affect the internal electrical wires)?
by SA_SA_SA
6 Jan 2020, 1:50pm
Forum: Touring & Expedition
Topic: Bike-and-train touring
Replies: 43
Views: 2254

Re: Bike-and-train touring

...and what happens if one link in your chain of bookings breaks (or is 'stolen; but is undealt with by any guard (if still present?))

Plus rubbish cycle compartments are still that whether booked or not
by SA_SA_SA
5 Jan 2020, 10:31pm
Forum: Touring & Expedition
Topic: Bike-and-train touring
Replies: 43
Views: 2254

Re: Bike-and-train touring

Given the cycle 'provision' on the new IEPs and others, and the need to book on most Mainland franchises, I wondered about buses/coaches: but even with motorways they seem a lot slower than expected. I think my limit on a bus/coach would be 3 hours :)
by SA_SA_SA
20 Dec 2019, 10:03pm
Forum: Bikes & Bits – Technical section
Topic: What considerations for buying a new Brompton bike
Replies: 31
Views: 1332

Re: Introducing myself and question about Brompton bike

rmurphy195 wrote:Have a think about the P type bars - I have them and while I don't use the drops very often, I do find them useful in more open places when there's a bit of wind going.....

Unfortunately, the P-type bars are no longer an option.
by SA_SA_SA
19 Dec 2019, 8:38pm
Forum: Bikes & Bits – Technical section
Topic: What considerations for buying a new Brompton bike
Replies: 31
Views: 1332

Re: Introducing myself and question about Brompton bike

I would always get a rear rack* as the bike is more stable when folded with one, and for rear lamp I think its worth getting the official (STzvo approved) rear lamp for always thereness, as you can always supplement it with you favoured kinds (For a rear-rackless type I would avoid the official Solo...