New Moto Guzzi Door Mats Available Now
AFAIK the 7/33 final drive gear is the most common for many Tontis but is not the sidecar gearing which is 7/37 to my knowledge. I would like to add that for riding cross country on the big slab the 8/33 does quite well. I also have 7/33 gears swapped in my Cali1100 and am quite happy with the change.
There is a 7/37 for the newer-of-the-older bikes. http://www.mgcycle.com/index.php?main_page=product_info&cPath=72&products_id=916I'm looking for one by the way..