AGE / VALUE:   Age of Chorus crank arm posted by: Darryl on 8/30/2006 at 3:09:58 PM
I have a NOS Campy left crank arm that I would like to know the age. The name (Campagnolo) is in script and size(175) and name (CHORUS) is on front. The back side has a "5/5 1/1" on it. My guess is about 1995.

   RE:AGE / VALUE: Age of Chorus crank arm posted by Warren on 8/31/2006 at 3:27:52 PM
Sounds right because the Chorus group in 1996 was labelled "Chorus 96". It was 8 speed Ergo at that time.

AGE / VALUE:   Vintage Motobecane posted by: Ashley on 8/29/2006 at 5:13:11 PM
I just bought a motobecane at a thrift store. Its my first bike since I was a kid - very excited. Can someone tell me what type of bike and what year it is?


   : Vintage Motobecane posted by John E on 8/30/2006 at 2:51:12 PM
It looks like a 1970s bike boom era 10-speed, Ashley -- basic, but quite practical, durable, and fun. Please post a list of components and/or a closeup photo of the drivetrain. I have seen plenty of mixte Motobecanes and Peugeots, but very few step-through frames. Also, please post the serial number and any alphanumeric codes you find on the cranks, derailleurs, brakes, or hubs, as this may help us in our detective work.

It looks VERY clean -- nice find!

MISC:   aluminum frame corrosion posted by: Spike on 8/29/2006 at 1:53:22 PM
Again I didn't see a place to post this.
I have picked up a pretty tall Mongoose
Crossway 850 Hybred.The natural finish aluminum frame has some pretty serious surface corrosion around the water bottle area and a number other spots.It appears it never had any sealer on it.Probably permanently scarred but I would like to clean it up some if possible.I was thinking starting with fairly course sand paper ending with something like 400 grit.It appears to have a very fine polished brushed finish now.
I picked this up mostly for speculation figured I can clean and tune and turn it over so I can put the money toward more toys for my collection.

MISC:   Bending aluminum frame. posted by: Spike on 8/29/2006 at 1:28:59 PM
Wasn't sure where to post this.Didn't see a MTN section.
This is an aluminum frame question not a lightweight question.A neighborhood kid stopped in with an aluminum MTN bike.He put some huge 700 X 29 tires on it.Had to cut kickstand mount and front brake mount to get clearence.
He asked me to fill tires to correct pressure and most of clearence went away.Question is can we carefully pinch the chain stays just enough to clear the tires.I understand aluminum can be brittle but we are just looking for about
1/8 on each stay.Personally I think he needs wider rims as well, which will make clearence an even bigger problem.
Thanks, Spike

   RE:MISC:   Bending aluminum frame. posted by Paul on 8/29/2006 at 11:23:46 PM
NO NO NO, you cannot pinch the frame to add clearance. Do not attempt this. Steel is the only popular frame material that can be "cold set".

   RE:RE:MISC: Bending aluminum frame. posted by John E on 8/30/2006 at 2:58:58 PM
I am surprised the brakes work with the 700C wheels. The only real solution is to use either a 650C wheelset (571mm rim diameter) or the 26" wheel size (559mm rim diameter) around which the frame was engineered. Since he likes wide tires, the latter is the better choice.

   RE:RE:RE:MISC: Bending aluminum frame. posted by Spike on 8/31/2006 at 1:44:10 AM
Thanks,but he was looking for the tall tires.He is just a young kid not much money.If he cuts the nubs off the shoulders of the tires I think they will fit.He and his buddies have been fiddling with bikes this summer on a shoe string.fixed gear,tall bikes,etc.
They went on a 80 mile ride to Rochester NY over the weekend.One of the boys drove his 2 month old $500 fixed gear into the slots of a storm drain. Fortunately wearing a helmet so
just some bumps and bruises and a cracked helmet.And of course some bike damage.I always nag them about helmets.
Ah youth.


AGE / VALUE:   Schwinn LeTour posted by: brandt on 8/29/2006 at 12:44:35 AM
I recently bought 2 Schwinn LeTours at a garage sale - $9.00 each. Both are Japanese "Schwinn Approved" and both are Opaque Blue color. One is 21" and the other 23". Both are in mechanically good shape but need a good cleaning up. I was wondering about the year of production?? Serial numbers are small bike K327130 and larger bike is 4L03802

   RE:AGE / VALUE:   Schwinn LeTour posted by Bryant on 8/29/2006 at 9:18:34 AM
Brandt, Look on the round headbadge for a 4 digit number stamped on it. The last number is the last digit of the year, the first three numbers are the day. Example 1236 is the 123rd day of 1976 or 1986 your call.

    Schwinn LeTour posted by John E on 8/30/2006 at 3:02:55 PM
Once you have narrowed it down to 197x or 198x, per Bryant's instructions, please post a list of major drivetrain components to decide between 1970s and 1980s. A 5-speed freewheel and/or centerpull brakes almost always implies 1970s. Six-speed freewheels, though available circa 1960, were very rare until the late 1970s, and they were nearly ubiquitous by the early 1980s.

   RE:AGE / VALUE:   Schwinn LeTour posted by brandt on 8/30/2006 at 11:45:26 PM
Bryant and John E. Thanks for your replies. The headbadge actually doesn't have any numbers on it. Also, they have Iowa City licenses from 1981, so that would probably put them back into the 70's for production. For components, Schwinn approved center pull brakes, LeTour GT 400 rear derailler and GT 450 front; steel rims with wide flange hubs - 5 speed free wheel.

   RE:AGE / VALUE:   Schwinn LeTour posted by Daryl on 10/14/2006 at 4:57:49 AM
A friend recently gave me a Le Tour that he bought in the 70's. It is yellow and also has the Schwinn approved center pull brakes and hums, GT 400 rear derailler and GT 45o front derailler. Looking at this web site it looks like it could be a 1975 or 1976, but the deraillers don't match. The headbadge doesn't have any numbers.

Have you found out any additional information about your LeTour?