stock Laverda rim widths, and currenttire selection for stock rims 82 1200TS?

[Paul LeClair]

I just went back using the search function. Lots of opinions on tires. I am thinking Bridgestone BT 45V yet again.
http://www.bridgestone.com/products/motorcycle_tires/products/size/on_bias.html

What is the width of the stock front rim on an 82 1200 TS? I am guessing it must be 2.5 inch? I am thinking a front BT 45V in 110/80. Roughly same OD as 100/90 and only 7 mm wider.

What is the width of the stock rear rim on an 82 1200 TS? I am thinking 120/90 (which requires a 2.75 inch rear rim width) or 130/80 ( which requires a 3 inch rear rim width). The 130/80 is 10 mm wider than the 120/90 if the 120/90 is fitted on a 2.75 inch rim and the 130/80 fitted on a 3 inch rim.

so, I guess the question boils down to whether the Laverda 1982 1200 TS has a stock 2.75 inch or 3.0 inch rear rim? If it is 3.0 inches, will the 130/80 tire at 131 mm total width fit in the stock swing arm and clear the stock 630 chain?

Paul LeClair

 

[Rob]

Stock rims are 2.15 front; 2.5 rear.  So 100 front; 120 rear is recommended fitment.  The factory did squeeze a 130 on for the Corsa...but results in an overtyred profile

Surely not keeping the 630 anchor chain??!!

 

[Paul LeClair]

thanks, Rob

so I am guessing then 100/90 front, 120/90 rear?

I already cut the rusted solid original stock 630 chain off with a grinder. Managed the grinder without mishap On my preservation kick I was contemplating going with a new 630 chain for originality's sake, but with each passing day I am doubtful I would be able to bring myself to order one. 530 it is.....

Paul LeClair

 

[Rob]

Hi Paul - yes, that was factory fitment.

If you can get hold of an original 'Diamond' 630 chain you'll be well on your way to recreating the not infrequent occurrence of a broken drive chain back in the day.  Have fond memories of one such incident on the way to Breganze in 1982...it was on a 1200 too!!    Appalling quality stuff

 

[Vince]

Paul you might have that oddball 1200 gearing as well,34 x 18 I think.Supost to spin the motor more to charge the battery.