Help Finding Tubulars for ca. 1897 Safety
10-29-10, 01:51 PM
#1
Senior Member
Thread Starter
Join Date: Oct 2007
Location: Falls Church, VA
Posts: 217
Bikes: 1979 Trek 3-sp, 1886 Unknown 52”hiwheel, 1970 Viscount fixed gear
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Help Finding Tubulars for ca. 1897 Safety
Posting for friend - here's what I know about the bike:
He's looking for tubular tire recommendations that he can use on these wooden wheels. Here's what else he says on the topic.
"Most of the rims, especially the later one are a full 1 and 1/2 inches wide and of course deeper. These are shallow enough I think even the 22mm tires would be high enough to keep the rim from being damaged. But if there is a slightly bigger sewup available that would be the Bomb. "
- 1897 Transit Safety - wooden tubular rims
- The wheel diameter is 25-1/4 in.
- width is just over 1-1/8 inches (micrometer reads the width as 27 mm).
- the section that the tire sits in the curve is around 20mm
He's looking for tubular tire recommendations that he can use on these wooden wheels. Here's what else he says on the topic.
"Most of the rims, especially the later one are a full 1 and 1/2 inches wide and of course deeper. These are shallow enough I think even the 22mm tires would be high enough to keep the rim from being damaged. But if there is a slightly bigger sewup available that would be the Bomb. "
10-29-10, 02:00 PM
#2
Cat 6
Join Date: Dec 2007
Location: Mountain Brook, AL
Posts: 7,482
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 500 Post(s)
Liked 183 Times
in
118 Posts
https://www.probikekit.com/display.ph...1&LIMIT=11#toc
24s,25s,27s, 32s, 34s from PBK
Dugast has lots of wider widths, too
https://www.a-dugast.com/dugasteng.html
24s,25s,27s, 32s, 34s from PBK
Dugast has lots of wider widths, too
https://www.a-dugast.com/dugasteng.html
__________________
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
Last edited by Ex Pres; 10-29-10 at 02:05 PM.
10-29-10, 02:13 PM
#3
Senior Member
Join Date: Sep 2009
Location: EagleRiver AK
Posts: 1,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 28 Post(s)
Likes: 0
Liked 60 Times
in
33 Posts
The 25-1/4" diameter would appear to be about 3/4" larger than 622mm diameter rims for standard, modern "700c" tubulars. Have you tried mounting a regular 700c tubular onto it? File tread cyclocross tubulars come in up to 32mm width IF you can get one stretched onto the rim.
If 700c tires are simply too small and cannot be stretched on, perhaps you could play with fabricating sew-up from a slightly larger size (28"?) clincher tires by tediously sewing the bead together???
If no tire can be sourced or fabricated, you could probably change out the original wooden rims for slighlty smaller 622mm wooden rims which are fairly available in order to make it rideable without drasticly changing the appearance. (Just be forwarned that this of course could also kill the originality value for a serious collector).
If 700c tires are simply too small and cannot be stretched on, perhaps you could play with fabricating sew-up from a slightly larger size (28"?) clincher tires by tediously sewing the bead together???
If no tire can be sourced or fabricated, you could probably change out the original wooden rims for slighlty smaller 622mm wooden rims which are fairly available in order to make it rideable without drasticly changing the appearance. (Just be forwarned that this of course could also kill the originality value for a serious collector).
Last edited by GrayJay; 10-29-10 at 02:20 PM.
10-29-10, 02:21 PM
#4
Cat 6
Join Date: Dec 2007
Location: Mountain Brook, AL
Posts: 7,482
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 500 Post(s)
Liked 183 Times
in
118 Posts
I'll bet the 25 1/4" measurement is to the widest part of the rim, not the bed. May not really be 3/4" off of modern rims.
__________________
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff
10-29-10, 06:39 PM
#5
Senior Member
Join Date: Feb 2010
Location: New Jersey
Posts: 904
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Check out Harper Machine 1329 Dunbar Ave. Dunbar Wv 25604 Phone 304-768-1147. They make a repro tire for Saftey's, fully pnuematic. last time I checked they were $110 shipped.
Thread
Thread Starter
Forum
Replies
Last Post
YGREG
Bicycle Mechanics
17
06-27-17 08:34 PM
matthias39682
Bicycle Mechanics
11
08-15-16 03:02 PM
