Ultima 6spd LSD and speedo problem

[68 shovelhead]

Hey I'm new to the forum but noticed there's alot of experience with Ultima trannys here. I just installed a new Ultima 6 speed left side drive in my lady's bike, a 96 heritage. Everything's good, the tranny shifts through all the gears smoothly and quietly. One issue, the speedo doesn't seem to be reading correctly. Toolin down the road at 60-70 mph and it's barely readin 50. It worked fine with the old 5speed. Anybody else had this issue?

(my only complaints with this tranny so far is that for some reason Ultima did not adjust the shifter pawl prior to buttoning up the shifter drum cover so I had to open it up and do it prior to installation)

[Batto]

Have two of there gear boxes and the same problem, not sure about your speedo if you were to disconect Battery for a while then maybe it may callabrate it self good luck mate. or maybe you could just run it off the front wheel like a real bike. lol....

[68 shovelhead]

Noticed on Jireh web site they sell this tranny with a "speedometer recalibration interface" for an extra hundred bucks.

"off the front wheel like a real bike? you gotta be kiddin, right?" Harley's been driving their speedos of the tranny for ever and who the hell wants another cable runnin down the front end? Ya, you gotta be jokin. good one, you had me goin for a minute

[NickD]

Isn't there some sort of spacer you need to make it work right?