Any experience with the Truvativ BB shell adapter?
10-02-07, 11:35 AM
#1
Senior Member
Thread Starter
Join Date: Jul 2006
Location: Oakland, CA
Posts: 1,300
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Any experience with the Truvativ BB shell adapter?
Just found out Truvativ makes an adapter to convert pressed BB races to 68mm English threaded
https://www.sheldonbrown.com/harris/opc.html#conversion
My girlfriend has a craptastic old singlespeed coaster JCPenny bike. It actually suits her riding style but the BB (and pedals) are the weak point in the system. If I could get her a nice 3 piece system with some better pedals she'd be set.
Does this adapter work as advertised?
https://www.sheldonbrown.com/harris/opc.html#conversion
My girlfriend has a craptastic old singlespeed coaster JCPenny bike. It actually suits her riding style but the BB (and pedals) are the weak point in the system. If I could get her a nice 3 piece system with some better pedals she'd be set.
Does this adapter work as advertised?
10-02-07, 12:34 PM
#2
Senior Member
Join Date: Dec 2005
Posts: 17,155
Mentioned: 481 Post(s)
Tagged: 0 Thread(s)
Quoted: 3808 Post(s)
Liked 6,679 Times
in
2,607 Posts
I have one on my Schwinn Super Sport. I had to tighten it up a few times after initial installation, but it has worked fine.
Neal
Neal
10-02-07, 01:10 PM
#3
Dolce far niente
Join Date: Dec 2004
Location: Northern CA
Posts: 10,704
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Likes: 0
Liked 17 Times
in
14 Posts
I wonder - could this device be used to convert a Viscount BB shell to a standard threaded type?
__________________
"Love is not the dying moan of a distant violin, it’s the triumphant twang of a bedspring."
S. J. Perelman
"Love is not the dying moan of a distant violin, it’s the triumphant twang of a bedspring."
S. J. Perelman
10-02-07, 02:51 PM
#4
Senior Member
Join Date: Dec 2005
Posts: 17,155
Mentioned: 481 Post(s)
Tagged: 0 Thread(s)
Quoted: 3808 Post(s)
Liked 6,679 Times
in
2,607 Posts
Neal
10-02-07, 06:02 PM
#5
Broom Wagon Fodder
Join Date: Jul 2006
Location: Minnesota
Posts: 1,384
Bikes: Fuji Supreme; Kona Wo; Nashbar road frame custom build; Schwinn Varsity; Nishiki International; Schwinn Premis, Falcon Merckx, American Flyer muscle bike, Motobecane Mulekick
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 52 Post(s)
Liked 64 Times
in
30 Posts
I installed the FMF adapter in my Schwinn Varsity. It's similar to the Truativ. The Rev. Schwinn did the same with his Continental. I made a ghetto press out of a big washer. I drilled 3 holes so I could press both sides in at the same time while keeping them aligned with the screws. The screws can't be used to draw the two sides in because you'll strip them.
The adapter works great.
The adapter works great.
10-02-07, 06:59 PM
#6
Member
Join Date: Jul 2006
Location: Chicago, IL
Posts: 44
Bikes: Salsa Ala Carte, Ross Mt Whitney, Brompton, 1973 Claud Butler Velox
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
reverborama -- good idea on the homemade press, especially on the holes in the washer; I've used the truvativ conversion cups to good effect, and managed to just use the screws themselves to pull the cups into the shell, but the threads were just about stripped by the last few turns.
As I recall, you'll have to push/tap/press one cup a fair way in to the shell (or both cups a little bit) in order for the screws to reach through the holes in one cup and engage with the other (to keep the holes in line while pressing.) It might make sense to leave one of the original cups in while you use the press to set one of the new cups, then tap out the second old cup and press in the second new.
As I recall, you'll have to push/tap/press one cup a fair way in to the shell (or both cups a little bit) in order for the screws to reach through the holes in one cup and engage with the other (to keep the holes in line while pressing.) It might make sense to leave one of the original cups in while you use the press to set one of the new cups, then tap out the second old cup and press in the second new.
10-03-07, 02:35 PM
#7
Senior Member
Thread Starter
Join Date: Jul 2006
Location: Oakland, CA
Posts: 1,300
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thanks guys
Just bought the FMF model. This should be fun, lots of good quality components built around a straight gauge carbon steel tank.
Just bought the FMF model. This should be fun, lots of good quality components built around a straight gauge carbon steel tank.
