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-   -   Totally Tubular (https://www.bikeforums.net/showthread.php?t=154679)

smontanaro 02-24-21 08:43 PM


Originally Posted by Ferrouscious (Post 21940159)
With tubulars, 90-95psi. Why did you decide on narrow tires? 25s or 28s would help immensely.

In addition to personal preference and availability, I will add... I haven't started working on it yet, but the Univega Super Speciale frame I just got has pretty short chainstays, maybe 16.25" (I'll have to double check). I think most of my other bikes have somewhat longer stays, maybe 16.75"? I suspect that might limit tire size.

Classtime 02-24-21 09:42 PM


Originally Posted by seedsbelize (Post 21940063)
5-10% less than the recommended 110 psi? It would certainly make a difference on the chipseal.

5-10% less than same size clinchers. For example: 90psi in my 25mm Sprinter Gatorskins vs. 100 in my 25mm Gatorskins.

Classtime 02-24-21 09:47 PM


Originally Posted by seedsbelize (Post 21940302)
What are some modern tubular rims? Mine are Mavic Monthlery. The easiest wheels I've ever built.

For our bikes, I think Ambrosio Nemesis is the go-to rim.

seedsbelize 02-25-21 06:36 AM

Thanks all.

seedsbelize 02-26-21 06:56 AM

Having terrible google fu, I'll ask here. Were I to swap my spare into a rider and a rider into a spare, would I want to add glue to the spare before mounting? It has two coats currently..I assume I'd need to glue the rim and the spare. Please advise. Thanks

Classtime 02-26-21 07:18 AM


Originally Posted by seedsbelize (Post 21942259)
Having terrible google fu, I'll ask here. Were I to swap my spare into a rider and a rider into a spare, would I want to add glue to the spare before mounting? It has two coats currently..I assume I'd need to glue the rim and the spare. Please advise. Thanks

It depends.
If you recently put those two coats on, I'd say no. Maybe a thin coat on the rim if some of the glue came up with the tire you removed. When I have flatted soon after mounting a new tire, it is very difficult to remove my spare when I get around to patching and putting the rider back on.

DiabloScott 02-26-21 01:10 PM


Originally Posted by seedsbelize (Post 21942259)
Having terrible google fu, I'll ask here. Were I to swap my spare into a rider and a rider into a spare, would I want to add glue to the spare before mounting? It has two coats currently..I assume I'd need to glue the rim and the spare. Please advise. Thanks

No, do not even bring glue on your rides. Your spare should have a coat of glue on it - typically from previous use. And you should get it on straight and pump it up to high pressure to hold it on - and just to be sure, you should minimize braking on that wheel and take the turns gingerly until you can replace it properly... but you'll probably be surprised at how hard it is to get off when you do.

seedsbelize 02-26-21 01:28 PM


Originally Posted by DiabloScott (Post 21942859)
No, do not even bring glue on your rides. Your spare should have a coat of glue on it - typically from previous use. And you should get it on straight and pump it up to high pressure to hold it on - and just to be sure, you should minimize braking on that wheel and take the turns gingerly until you can replace it properly... but you'll probably be surprised at how hard it is to get off when you do.

I was speaking to changing it here in the shop. Putting the 25mm spare on in place of the rear 22mm tire. I did that this morning, and it came off easier than I expected. And the new one went on easily. I put a light coat on the rim, probably unnecessarily. I'm using Hutchinson glue; maybe it doesn't hold as tight as the others. But also, it was simply not on there very long. Maybe a week. My options are very limited here. Where I will get my next batch of glue is anybody's guess. The airlines tend to remove it from checked baggage. I have 1.5 tubes though, at present.

seedsbelize 02-27-21 09:50 AM

I'm thinking I must be a tubular savant. Every aspect I come in contact with is easier and more enjoyable than I expected.:-)

squirtdad 02-27-21 11:25 AM


Originally Posted by seedsbelize (Post 21943943)
I'm thinking I must be a tubular savant. Every aspect I come in contact with is easier and more enjoyable than I expected.:-)

sshhhhhhssssh...... this is the big secret: they really are not that hard and from what I read in the mechanics section a ton less difficult than tubeless (i have no tubeless hands on experience) need to keep the mystique of tubies to the cognoscenti :)

seedsbelize 02-27-21 08:01 PM


Originally Posted by squirtdad (Post 21944072)
sshhhhhhssssh...... this is the big secret: they really are not that hard and from what I read in the mechanics section a ton less difficult than tubeless (i have no tubeless hands on experience) need to keep the mystique of tubies to the cognoscenti :)

How are you liking those Challenge Elite?

squirtdad 03-01-21 06:38 PM


Originally Posted by seedsbelize (Post 21944618)
How are you liking those Challenge Elite?

so far so good, but not a lot of miles. the combination of those tires and mavic 330 rims (on edge of being too light for me) and the 84 miyata is the best riding bike I have had

am putting more miles on the Vittoria Corsa Control G+ on other bike (fit 30mm even though the 5800 105 brakes said 28 mm max.)

xiaoman1 03-01-21 10:17 PM

Hello,
I am still looking for a close match to this tubular, I have had some leads but nothing has panned out so far....I want to run it on my Bianchi KRONO and I need it in a 700cx22. i am hoping that there is at least one out there somewhere...decent condition is alright...I would even consider a clincher. Orange with Tan sidewall...
https://cimg3.ibsrv.net/gimg/bikefor...0216bbd0ef.jpg
looking for a 700cx22
https://cimg8.ibsrv.net/gimg/bikefor...23d792264e.jpg
I need a rear 700 to put on this.

Any help much appreciated PM only, please.:thumb:
Best, Ben

woodcraft 03-02-21 12:32 AM

On the way to an appointment this morning, I realized I had not brought pack with spare, etc., & thought well I never get flats anyway.

Almost 1.5 miles out, got a puncture, turned around & rode back on the flat tire. The appointment got rescheduled for an hour later, & I put on another wheel

The tire seems OK except for the puncture- 30mm Schwalbe.

Vince Hoffmann 03-07-21 06:56 PM

I got a puncture in my Gatorskin tubular yesterday, it was a bear peeling it off but using tire levers helped immensely. I put on my spare Vittoria and managed to pump it up to 90 pounds and got to a local bike shop and gave it extra pressure to 140 and it happily took me the 25 miles back home!

After 5 years, that was my first puncture and having to change my tire on the road. It wasn't too bad. I can't say clinchers are any easier because you still have to pry the bead out of the rim and some tires can really be hard to get off. I think the hardest part is getting the tire up to pressure as my pump could only go up to 90 before my arms gave out!

I've heard that you can accidently roll the tire off the rim going around corners, but I had no trouble with the spare for the rest of the day.

scozim 03-08-21 11:21 PM

Stumbled across this pristine NOS Vittoria Trofeo 250. Would love to find something similar to match. Otherwise it may end up as a spare, which could be better anyway
https://cimg6.ibsrv.net/gimg/bikefor...6040bf54cc.jpg
https://cimg7.ibsrv.net/gimg/bikefor...e8a6c96dfd.jpg

gkamieneski 03-11-21 09:11 AM

GL330 Comparable Rims
 
I use a 32h GL330 front with a 32h Reflex rear. I'm pretty sure I will be able to find a replacement rim for the rear when I should need one, but I don't see any shallow box section rims that would be around the same ERD as the GL330 if I had to do a lace-over.

Anyone find something comparable to the Mavic GL330?

SJX426 03-11-21 10:21 AM

@gkamieneski - there are a lot of GL330's on the bay. Some with reasonable prices. Although, many are 36 hole.

gkamieneski 03-11-21 10:58 AM


Originally Posted by SJX426 (Post 21962360)
@gkamieneski - there are a lot of GL330's on the bay. Some with reasonable prices. Although, many are 36 hole.

No. Really nothing there for 32h. What there is charges exorbitant shipping. I was hoping someone has found another rim that is comparable. I believe Ambrosios are long gone. Most tubular rims are now made of carbon.

SJX426 03-11-21 12:28 PM

@gkamieneski - Checked my stock. No spare GL330 in 32h and the NISI and GP4's are all 36h. Sorry.

gkamieneski 03-11-21 07:30 PM

Clearly Ambrosio would have a market if they decided to make their Nemesis rim again.

Classtime 03-11-21 08:05 PM


Originally Posted by gkamieneski (Post 21963346)
Clearly Ambrosio would have a market if they decided to make their Nemesis rim again.

Cerchio bici: Ambrosio Nemesis - Ambrosio Wheels
you are in luck. Finding a dealer has always been an effort.

gkamieneski 03-11-21 08:30 PM

Thanks. I saw that, but I wasn't sure they were actually selling them. Found no vendors.

Lazyass 03-13-21 08:56 AM

FWIW, BWW still has at least one set of their Ultegra 6700 tubulars on clearance if someone is looking to build up a bike with modern stuff. I've had a set for two years and they're flawless, I haven't had to turn a spoke nipple. The rims are the best tubular rims I've ever had and the decals peel off if you don't like them. They say the hubs are "dark silver" but they're the regular silver hubs. DT Swiss Comp butted spokes. With the discount code 10Now they're only $170.51. The hubs are probably worth close to that. I'm tempted to buy a spare set.

https://bicyclewheelwarehouse.com/Cl...ar-wheels.html

https://i.postimg.cc/JnpWCR1Q/014.jpg
https://i.postimg.cc/5t1RpDwq/20200107-143909.jpg

DiabloScott 03-13-21 03:23 PM


Originally Posted by Lazyass (Post 21965266)

Nice spare fold!

gkamieneski 03-13-21 03:28 PM

Guess they only sell built wheels, not rims?

Lazyass 03-13-21 04:23 PM


Originally Posted by gkamieneski (Post 21965768)
Guess they only sell built wheels, not rims?

Man, they used to but I don't see them on the site now. I remember they were only $39.99 because I was thinking about using them to build up some vintage hubs. You could contact them and see. The rims are nice, very stiff. They look like the Velocity Major Tom rims.

gkamieneski 03-16-21 11:34 AM

Pressures for Sewups
 
There are many threads discussing tire pressure, mostly suggesting that lower pressure is better, but I think these are mainly referencing clincher or tubeless.

What about tubular tires? Conti Sprinters are rated to 170psi, but surely riders are not pumping them that high? I thought one of the sewup's biggest advantage was lower pressures and pinch flat avoidance.

I use my 25c clinchers at 85psi/90psi f/r. Haven't been on sewups for years but can't imagine using those high pressures on the sidewalls.

scozim 03-16-21 11:14 PM


Originally Posted by gkamieneski (Post 21970269)
There are many threads discussing tire pressure, mostly suggesting that lower pressure is better, but I think these are mainly referencing clincher or tubeless.

What about tubular tires? Conti Sprinters are rated to 170psi, but surely riders are not pumping them that high? I thought one of the sewup's biggest advantage was lower pressures and pinch flat avoidance.

I use my 25c clinchers at 85psi/90psi f/r. Haven't been on sewups for years but can't imagine using those high pressures on the sidewalls.

I have my Sprinters between 115 and 120 psi. They ride super nice. The max I have had them was 130 for a hill climb race - not that I needed to. In fact, my clinchers are usually 110-120 psi. Just always have so I don't change it. Cheap tubulars I'll run between 105-110 psi

semroc 03-17-21 08:59 AM

After I read where Boonen, and Chavanel were running 59 in front and 62 in the back for Roubaix. I've lowered my pressures down to 75 on all my tubulars. They ride real comfy.


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