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Search: Posts Made By: invisiblehand
Forum: Folding Bikes 02-14-18, 11:32 AM
Replies: 60
Views: 4,668
Posted By invisiblehand
Sweet!

Sweet!
Forum: Folding Bikes 02-09-18, 03:14 PM
Replies: 29
Views: 1,020
Posted By invisiblehand
My prior is that with respect to a chain,...

My prior is that with respect to a chain, chainring, and cog, the belt drive would be lighter not heavier. I thought that was the case with tandems and timing belts, for instance.
Forum: Folding Bikes 02-09-18, 09:10 AM
Replies: 11
Views: 486
Posted By invisiblehand
There were 20x2.0" Primo Comets. But there was a...

There were 20x2.0" Primo Comets. But there was a lot of dishonesty in tire sizing at the time. I'd be surprised if they were close to 50 mm.

20 x 1.75" Primo Comets at the time measured really...
Forum: Folding Bikes 02-07-18, 10:19 AM
Replies: 29
Views: 1,020
Posted By invisiblehand
I expect the belt drive model to be lighter than...

I expect the belt drive model to be lighter than the chain drive.

Is the above correct? If so, can someone explain why a chain drive bike would be so much lighter? They're both single speeds.
Forum: Folding Bikes 02-07-18, 09:56 AM
Replies: 3
Views: 328
Posted By invisiblehand
Measured or claimed? Other than the OS20...

Measured or claimed?

Other than the OS20 bmx tires, I've never seen one actually 37 mm.
Forum: Folding Bikes 02-05-18, 12:34 PM
Replies: 58
Views: 2,915
Posted By invisiblehand
Whoopee! My mistake. I generally see 2- and...

Whoopee! My mistake. I generally see 2- and 6-speed versions around. Although I don't think it changes the discussion.
Forum: Folding Bikes 02-02-18, 09:35 AM
Replies: 58
Views: 2,915
Posted By invisiblehand
I have not thought of that. I'm not...

I have not thought of that.



I'm not sure what the value of a 6 versus 3 speed is in the used market. I get the sense that most folks get the 2 or 3 speed versions. So you're estimate is...
Forum: Folding Bikes 01-25-18, 09:41 AM
Replies: 27
Views: 700
Posted By invisiblehand
I read that after two years, you now need to...

I read that after two years, you now need to replace the rim. Over what distance is that? As you're almost certainly aware, the smaller rim will wear out faster. Based solely on geometry --...
Forum: Folding Bikes 01-24-18, 03:34 PM
Replies: 27
Views: 700
Posted By invisiblehand
Whoa! At least it wasn't an aluminum fork!...

Whoa!

At least it wasn't an aluminum fork!

If you were only worried about long descents and wanted a drag brake, I'd still use an ordinary fork with the drum brake.

Maybe this will be a...
Forum: Folding Bikes 01-24-18, 11:58 AM
Replies: 27
Views: 700
Posted By invisiblehand
Shouldn't one be worried about the extra load on...

Shouldn't one be worried about the extra load on the fork blade?
Forum: Folding Bikes 01-11-18, 12:27 PM
Replies: 51
Views: 3,073
Posted By invisiblehand
Have a great time! Let's see the prototype...

Have a great time!

Let's see the prototype front bag mount on the Curl! ;)
Forum: Folding Bikes 01-10-18, 02:08 PM
Replies: 18
Views: 636
Posted By invisiblehand
Interesting.

Interesting.
Forum: Folding Bikes 01-08-18, 11:14 AM
Replies: 79
Views: 4,868
Posted By invisiblehand
Yep ... tinkering involves a lot of trial and...

Yep ... tinkering involves a lot of trial and error, IME. Can be fun at times.

The wheel/tire size thing is particularly tricky. Brompton, of course, has 349 wheels. But I understand that it...
Forum: Folding Bikes 01-05-18, 12:21 PM
Replies: 47
Views: 2,699
Posted By invisiblehand
Older Brompton clones -- I'm thinking of the Merc...

Older Brompton clones -- I'm thinking of the Merc -- mimicked the older Brompton design which had a shorter wheelbase. (perhaps other differences ... but the wheelbase was easy to measure) Perhaps...
Forum: Folding Bikes 12-26-17, 09:18 PM
Replies: 13
Views: 711
Posted By invisiblehand
Merry Christmas and Happy Holidays to all!

Merry Christmas and Happy Holidays to all!
Forum: Folding Bikes 12-22-17, 09:23 AM
Replies: 34
Views: 1,357
Posted By invisiblehand
Weight matters for packed travel and carrying the...

Weight matters for packed travel and carrying the bike. I understand that it's roughly a pound when everything is accounted for including differences in the frame. (this is what's claimed by...
Forum: Folding Bikes 12-18-17, 02:17 PM
Replies: 34
Views: 1,357
Posted By invisiblehand
Weight and more susceptible to damage while...

Weight and more susceptible to damage while folded/transported.
Forum: Folding Bikes 12-18-17, 12:12 PM
Replies: 53
Views: 2,570
Posted By invisiblehand
Interesting. It's definitely hard to describe...

Interesting. It's definitely hard to describe these issues relative to having the bike in front of you and testing a few things out. But it looks sweet. Congratulations on the new ride.

What...
Forum: Folding Bikes 12-07-17, 02:39 PM
Replies: 30
Views: 3,148
Posted By invisiblehand
https://paulcomp.com/shop/components/motolite/

https://paulcomp.com/shop/components/motolite/
Forum: Folding Bikes 12-04-17, 10:58 AM
Replies: 71
Views: 10,070
Posted By invisiblehand
My take is that this is the main point. If...

My take is that this is the main point. If anyone thinks that a Chinese knockoff can be efficiently brought into say the US and a decent profit made, they should go for it. As I wrote earlier, I...
Forum: Folding Bikes 11-27-17, 02:42 PM
Replies: 26
Views: 1,302
Posted By invisiblehand
My training ride times were pretty close across a...

My training ride times were pretty close across a Salsa La Raza and Bike Friday NWT. On the order of what one might expect for a 5 pound difference in weights.
Forum: Folding Bikes 11-27-17, 11:37 AM
Replies: 20
Views: 749
Posted By invisiblehand
I had no idea that turkeys were indigenous to...

I had no idea that turkeys were indigenous to southern climates. Mind you, I never actually looked it up. But as a kid, I recall lots of history with the Pilgrims in Massachusetts with turkeys but...
Forum: Folding Bikes 11-27-17, 10:42 AM
Replies: 71
Views: 10,070
Posted By invisiblehand
Well there you go! The first two links worked...

Well there you go! The first two links worked for me but the second two did not. Nonetheless, if someone is willing to buy sets of 20, the first is an all alloy frame/fork for ~$130/piece. The...
Forum: Folding Bikes 11-27-17, 09:29 AM
Replies: 26
Views: 1,302
Posted By invisiblehand
It sounds like a weird setup. While the long...

It sounds like a weird setup. While the long stem and saddle mast without a diamond frame generally makes a Bike Friday somewhat more flexible, you shouldn't get wild amounts unless the headset is...
Forum: Folding Bikes 11-24-17, 10:25 AM
Replies: 20
Views: 749
Posted By invisiblehand
Happy Thanksgiving folks!

Happy Thanksgiving folks!
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