Search found 54 matches

by 2_i
19 Nov 2020, 5:34am
Forum: Bikes & Bits – Technical section
Topic: Rubber Solution ( merged : various )
Replies: 78
Views: 2752

Re: Rubber Solution ( merged : various )

To deal with drying rubber cement you get Heptane https://www.amazon.co.uk/Heptane-99-5-500ml-Including-Delivery/dp/B07VD1SCQW and dilute the cement. You should be able to get Heptane in smaller containers in arts supply stores where it may be marketed under some other name. I carry the cement in my...
by 2_i
18 Nov 2020, 12:16pm
Forum: Bikes & Bits – Technical section
Topic: Can I fit Secu Clips to these mudguard stays?
Replies: 3
Views: 240

Re: Can I fit Secu Clips to these mudguard stays?

You can afford putting there wider washers under the holding bolts. This is what I normally do to prevent the stay from deforming and slipping out from the hold.
by 2_i
17 Nov 2020, 3:32pm
Forum: Bikes & Bits – Technical section
Topic: Dual dynamo powered headlights, how to wire?
Replies: 39
Views: 1019

Re: Dual dynamo powered headlights, how to wire?

The ground was normally connected to the metal mount and then frame. If you had separate terminals, with one being ground, and you wired them incorrectly, you were likely to short-circuit the dynamo.
by 2_i
17 Nov 2020, 3:07pm
Forum: Bikes & Bits – Technical section
Topic: Dual dynamo powered headlights, how to wire?
Replies: 39
Views: 1019

Re: Dual dynamo powered headlights, how to wire?

"look Ma (-machari)! No wires!" :shock: :lol: BTW if you have ever seen one of these running on a wheel/tyre that is slightly out of round, depending on how it is constructed exactly, the beam of light can sway drunkenly from side to side as the wheel turns, which I'd imagine could be rat...
by 2_i
17 Nov 2020, 6:07am
Forum: Bikes & Bits – Technical section
Topic: Dual dynamo powered headlights, how to wire?
Replies: 39
Views: 1019

Re: Dual dynamo powered headlights, how to wire?

Japanese Mamachari would be normally equipped with a so-called block dynamo, a bottle dynamo integrated with a lamp and obviously mounted on the side of the wheel. However, then that lamp would be protected by the basket above and basket stay running on the outside of the lamp and protecting it. My ...
by 2_i
16 Nov 2020, 3:50am
Forum: Bikes & Bits – Technical section
Topic: Dual dynamo powered headlights, how to wire?
Replies: 39
Views: 1019

Re: Dual dynamo powered headlights, how to wire?

Fork mounting is the traditional British touring position so cannot be that bad. I have had dynamo lamps on the fork mounts since the mid-seventies without losing any. For the last few years, plastic LED types. I do not let the bike fall over very often, but if it does the bars and panniers probabl...
by 2_i
13 Nov 2020, 4:46am
Forum: Bikes & Bits – Technical section
Topic: Getting rubber bar grips to stick?
Replies: 21
Views: 616

Re: Getting rubber bar grips to stick?

I stick a piece of surgical tape to the handlebar and slip the grip on top. In the end, you want the grip to be removable without damage.
by 2_i
9 Nov 2020, 5:39am
Forum: Bikes & Bits – Technical section
Topic: Dual dynamo powered headlights, how to wire?
Replies: 39
Views: 1019

Re: Dual dynamo powered headlights, how to wire?

The post of Andrew above alludes to the insecurity of a light mounted on a fork. If there is no protection of some sort following from the bike's geometry, front rack or basket, the lamp will get killed in a fall. Even with a protection above, it may be knocked off when entangled with another bike d...
by 2_i
8 Nov 2020, 5:16pm
Forum: Bikes & Bits – Technical section
Topic: 18650 batteries
Replies: 7
Views: 577

Re: 18650 batteries

18650 are my base standard now and AA/AAA are only used in legacy devices. To the sources of these cells you can add battery packs for power tools. Incidentally they become now rare in laptops as the latter now mostly utilize flat batteries formed to fill specific space. The problem with the recycle...
by 2_i
7 Nov 2020, 12:31am
Forum: Bikes & Bits – Technical section
Topic: Cables for Brompton 3 speed gear leavers
Replies: 23
Views: 610

Re: Cables for Brompton 3 speed gear leavers

I have the segmented housing on Brompton for a year+ now with about 3 foldings/unfoldings per week. I have a triple front mech there and the segmented housing is particularly helpful with the sharp turn of the cable up the seat tube. I bring the latter fact up, because it might give insights into th...
by 2_i
6 Nov 2020, 7:47pm
Forum: Bikes & Bits – Technical section
Topic: Cables for Brompton 3 speed gear leavers
Replies: 23
Views: 610

Re: Cables for Brompton 3 speed gear leavers

I put segmented housing on my Brompton and it became now my choice anywhere else, both for shift and brake cables. On the single Brompton rear shift cable, you save about 40g.
by 2_i
2 Nov 2020, 4:56am
Forum: Bikes & Bits – Technical section
Topic: Measuring Caliper recommendation
Replies: 34
Views: 1028

Re: Measuring Caliper recommendation

The machine shop and instrumental branches of my workplaces are saturated with digital Mitutoyo calipers. Cheap ones are only used in some training sessions I believe. My digital 6" Mitutoyo is 6 years old now and I think that I changed the battery only once. Incidentally my workplace employs o...
by 2_i
1 Nov 2020, 5:43pm
Forum: Bikes & Bits – Technical section
Topic: Measuring Caliper recommendation
Replies: 34
Views: 1028

Re: Measuring Caliper recommendation

Get a Mitutoyo digital caliper, even if it were above your upper limit, and be done with the caliper problem for good. After I got mine, regrets quickly came down that I wasted years of my life without one.
by 2_i
26 Oct 2020, 2:15am
Forum: Bikes & Bits – Technical section
Topic: Dynamo lamp reliability
Replies: 32
Views: 990

Re: Dynamo lamp reliability

One more for IQ-Cyo's. They are a reliable standard around the family, 5 of them on our bikes. Toplight Line Plus emerged as or standard for the rear, but I am not sure I can really recommend the latter - over time problems with capacitors emerged. These were fixable but most people might not want t...