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Search: Posts Made By: laffin_boy
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Forum: Folding Bikes
12-09-19, 06:38 PM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

Ah, we're talking Apples & Oranges. The fact that...

Ah, we're talking Apples & Oranges. The fact that your tires are wider is overshadowed by the fact that they're 406mm vs my 451mm. Because of this your tires will sit approx 7/8" further back in the...
Forum: Folding Bikes
12-02-19, 10:21 PM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

The rear dropouts on my bike look non-standard...

The rear dropouts on my bike look non-standard because I hacked off all the unnecessary "track-style" dropout that I didn't need and then made lightening holes - to save a few grams. There's only...
Forum: Folding Bikes
12-01-19, 11:24 PM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

Yes I used them on my swift...

Yes I used them on my swift (https://www.bikeforums.net/21027073-post3855.html) to move the axle back 5mm so I could run 451 x 41 tires. Work great and aren't "in the way" at all. Only drawback is...
Forum: Folding Bikes
08-22-19, 10:36 PM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

Thank You I built them. Used Velocity...

Thank You



I built them. Used Velocity A23 24H rims that I could only find at Velocity (= expensive) Good rims, light but don't recommend Velocity as a good company to deal with. Unfortunately...
Forum: Folding Bikes
07-15-19, 09:33 PM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

The fork (i 1/8" threadless steerer) was built...

The fork (i 1/8" threadless steerer) was built for me by Andy Stewart who can be found on the Framebuilding forum and who chimed in with post #3856...
Forum: Folding Bikes
07-15-19, 01:34 AM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

Hi Jur! Neither actually. It's powder coat...

Hi Jur!

Neither actually. It's powder coat and the color is "transparent copper" - shiny aluminum base coat with a translucent color coat that gives it an anodized effect.

And the riser / stem...
Forum: Folding Bikes
07-14-19, 08:58 PM
Replies: 3,932
Views: 740,638
Posted By laffin_boy

My Version of the Swift

Getting this Swift on the road has been a 6 mo odyssey but i'll spare you most of the gruesome details. The bike in the pics below began as a late version Xootr which is different, IMHO, from most...
06-24-19, 08:59 PM
Replies: 7,777
Views: 2,278,233
Posted By laffin_boy

Don't know if anyone wiil wade to the end of...

Don't know if anyone wiil wade to the end of this ancient thread but here's my very un-traditional treatment of a classic Vitus 992 which got lightweight 650 x 32 wheels (w/ long reach brakes) along...
Forum: Road Cycling
05-14-19, 10:58 PM
Replies: 5
Views: 588
Posted By laffin_boy

Let me edit my question: What bike models...

Let me edit my question:


What bike models over the past 10 - 15 yrs came with curved, caliper brake 700c carbon forks that could accept 700 x 32 or bigger? IE: "light touring" bikes, etc?
Forum: Road Cycling
05-14-19, 10:34 PM
Replies: 5
Views: 588
Posted By laffin_boy

Fat Carbon Forks?

Hi, I have a Litespeed Arenberg Ti road bike that i've "gravelized" by using 650b wheels with ultralight 38mm Panaracer Gravel Kings. The Most Comfortable bike Ever. Now my riding partner, who rides...
Forum: Folding Bikes
03-03-19, 05:24 PM
Replies: 459
Views: 114,679
Posted By laffin_boy

Pine Cone: Thanks for replying. Yes I read...

Pine Cone:
Thanks for replying.

Yes I read the entire Ti thread. Twice. And from the components listed the only way I can see to load the headset would be to snug it up by hand, install the...
Forum: Folding Bikes
03-03-19, 12:37 PM
Replies: 459
Views: 114,679
Posted By laffin_boy

Thanks. jur, love to have your input here. ...

Thanks.

jur, love to have your input here.

Tom
Forum: Folding Bikes
03-03-19, 01:03 AM
Replies: 459
Views: 114,679
Posted By laffin_boy

Jur ???

As per my last post i'm ready to order a Ti Swift from Titan but (a) I need to see the plans in order to be able to specify the changes I want to make and also (b) Jur talked about issues with the...
Forum: Folding Bikes
02-28-19, 03:49 AM
Replies: 459
Views: 114,679
Posted By laffin_boy

OK so I sold my folder with the poor geometry...

OK so I sold my folder with the poor geometry from the famous folding bike mfgr and thinking that i'd save some money this time I ordered a Xootr frame & seatpost from Peter. It arrived today and...
Forum: Framebuilders
02-26-19, 03:10 AM
Replies: 13
Views: 2,494
Posted By laffin_boy

Andy, That's a gorgeous setup!! Wish I could come...

Andy, That's a gorgeous setup!! Wish I could come and drool over it! (But you probably have 8' of snow in your driveway)

Would you recommend that particular vernier protractor?

Tom
Forum: Folding Bikes
01-27-19, 12:28 AM
Replies: 459
Views: 114,679
Posted By laffin_boy

Thanks for replying. Tom

Thanks for replying.

Tom
01-26-19, 09:27 PM
Replies: 7
Views: 1,961
Posted By laffin_boy

If the bike is still available i'd like to buy...

If the bike is still available i'd like to buy it. Today. I sent you a PM.

Tom
Forum: Folding Bikes
01-26-19, 03:10 PM
Replies: 2
Views: 968
Posted By laffin_boy

Butted Spokes ?

I want to build a set of 451 wheels for a new folder using double-butted spokes but I haven't been able to find a source yet. 406 rims yes - 451 no.

Anyone know of a (retail) supplier?

Tom
Forum: Framebuilders
01-23-19, 07:12 PM
Replies: 23
Views: 1,854
Posted By laffin_boy

These...

These (http://tiogausa.com/bmx_race/products/tires/race/os20-powerblock/) are available in 1.6" (41mm) & 1.85" (47mm) for BMX racers. The 1.6" (even though it has more "tread" than I want) is only...
Forum: Framebuilders
01-23-19, 02:07 PM
Replies: 23
Views: 1,854
Posted By laffin_boy

Well wheel flop is directly proportional to...

Well wheel flop is directly proportional to trail. More trail = more flop. I use this online trail calculator (http://www.yojimg.net/bike/web_tools/trailcalc.php) to figure trail and it gives you...
Forum: Framebuilders
01-23-19, 01:11 PM
Replies: 23
Views: 1,854
Posted By laffin_boy

Yes, you're correct, - smaller wheels have a...

Yes, you're correct, - smaller wheels have a proportionally smaller range of trail which will produce desirable handling characteristics but I don't think that's why many folding bikes handle so...
Forum: Framebuilders
01-22-19, 11:39 PM
Replies: 23
Views: 1,854
Posted By laffin_boy

https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulletin/1500x2000/my_castor_angle_d846f5b99add270413f0eb757af8fe7c6b09174c.jpg
Andy:

I woke up this AM with the answer to my opening question. It...
Forum: Folding Bikes
01-22-19, 10:22 PM
Replies: 21
Views: 2,137
Posted By laffin_boy

I started this thread because I was puzzled by...

I started this thread because I was puzzled by the fact that my folder has dramatically less trail than full sized bikes as well as hearing that other folders also seem to have much lower trail...
Forum: Framebuilders
01-22-19, 01:21 AM
Replies: 23
Views: 1,854
Posted By laffin_boy

Thanks. It may come to that and I may take you up...

Thanks. It may come to that and I may take you up on your offer.

Tom
Forum: Framebuilders
01-21-19, 01:14 AM
Replies: 23
Views: 1,854
Posted By laffin_boy

Thanks for replying. I thought I had mentioned...

Thanks for replying. I thought I had mentioned the actual trail figure on the bike in question but, apparently, I didn't. It's 35mm with 451 x 28 tires. So if it were given a "normal" trail for a...
Forum: Framebuilders
01-21-19, 12:59 AM
Replies: 23
Views: 1,854
Posted By laffin_boy

Thanks for going to the trouble of copying your...

Thanks for going to the trouble of copying your notes and your helpful remarks!



Yes I think weight dist is huge. On the specific 20" wheeled bike i'm unhappy with my handlebars are level with...
Forum: Folding Bikes
01-20-19, 02:04 AM
Replies: 459
Views: 114,679
Posted By laffin_boy

Jur hoping you are still around and see this...

Jur hoping you are still around and see this 'cause I don't know how else to reach you...

I'm very curious about the geometry differences between the Alum Xootr / Swift and your Ti frame. You...
Forum: Framebuilders
01-19-19, 03:24 PM
Replies: 23
Views: 1,854
Posted By laffin_boy

Geometry gurus ?

I'm posting my question here in hopes of finding someone who actually understands bike geometry from both a theoretical & practical perspective.

My question has to do with a bike handling quality...
Forum: Folding Bikes
01-15-19, 11:38 PM
Replies: 21
Views: 2,137
Posted By laffin_boy

Sure, if you were to take a bike designed for 24"...

Sure, if you were to take a bike designed for 24" wheels and put 20" wheels on it the originally intended amount of trail would be way off. But hopefully that's not what we're talking about....
Forum: Folding Bikes
01-14-19, 09:58 PM
Replies: 21
Views: 2,137
Posted By laffin_boy

Thanks for your suggestion

Thanks for your suggestion
Forum: Folding Bikes
01-14-19, 09:57 PM
Replies: 21
Views: 2,137
Posted By laffin_boy

Thanks for your reply. Might be a good...

Thanks for your reply.



Might be a good subject for a survey - don't you think? Handling characteristics of known folding bikes compared to each other and also full-sized bikes?
Forum: Folding Bikes
01-13-19, 01:46 AM
Replies: 21
Views: 2,137
Posted By laffin_boy

Bike Geometry & 20" wheels

Background:
I recently bought a Bike Friday Pocket Rocket Pro with 451 wheels (& Panaracer Minits 28-451 tires). After riding it enough so that I was over the “talking myself into it” phase and...
Showing results 1 to 32 of 32


 
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