A quick calc shows instead of 336 mm a 330 mm length would place the length at the OEM length of 13" o.c. Reading the specs, it seems like the length adjustability is +10 mm and - 0 mm. The additional length of the listed 336 mm, not to include the + 10 mm is .223" so roughly 1/4". Add the + 10 mm and you get 13.62" or about 2/3" greater than the OEM shock length. Increasing the length of the shock steepens the steering head angle, making the bike steer more-quickly. That's something to consider.
Also, assuming the shock in question is rated for Harley-Davidson use, a Big Twin is much heavier than a Gen. 1 VMax, and the correct coil-over spring for a Big Twin is going to likely be much too-stiff for the 600 lb wet weight of a VMax, unless you're a Big Boy and weigh 275 lbs. Another thing to consider, asking for a lighter spring to be installed.
I know there are some people on here who use a Kawasaki ZRX shock which is >14" long o.c., and they evidently have no issues with the increased length. Maybe they run the spring at minimum tension, and the static sag brings the shock length close-to the OEM length.
Ohlins was at one time owned by Yamaha, but I'm not-sure they still do.
In any event, your beautiful, cutting-edge shocks are worth more than several of the bikes in my ownership. Be sure and report back about their performance once you've gotten some use out of them. With a premium set of 17" sport radials and some front end fettling, the bike should be much-better than the OEM set-up.
Also, assuming the shock in question is rated for Harley-Davidson use, a Big Twin is much heavier than a Gen. 1 VMax, and the correct coil-over spring for a Big Twin is going to likely be much too-stiff for the 600 lb wet weight of a VMax, unless you're a Big Boy and weigh 275 lbs. Another thing to consider, asking for a lighter spring to be installed.
I know there are some people on here who use a Kawasaki ZRX shock which is >14" long o.c., and they evidently have no issues with the increased length. Maybe they run the spring at minimum tension, and the static sag brings the shock length close-to the OEM length.
Ohlins was at one time owned by Yamaha, but I'm not-sure they still do.
In any event, your beautiful, cutting-edge shocks are worth more than several of the bikes in my ownership. Be sure and report back about their performance once you've gotten some use out of them. With a premium set of 17" sport radials and some front end fettling, the bike should be much-better than the OEM set-up.