We're using Redline Primary and Chaincase lube in two different Harleys. I couldn't get Spectro without ordering it, but the NAPA place nearest to me sells Redline. Maybe other NAPA stores carry it too.
I forgot to say we're also using the Redline transmission oil with Shock Proof in both bikes. I might jjust give the Spectro transmission lube a try in the future if I find some locally. But, it's not a high priority as we're real happy with the Redline. It really quieted the fifth gear whine (which wasn't all that bad in the first place and was kiind of handy as a fifth gear indicator) and left just enough of the first gear whine to let me know I'm really in first.
With the Redline lube, when the bikes are cold, shifts are very quiet. When they warm up the shifter clunk comes back.
