Transmission advice!

REBLX136

Supercharged
Joined
Jun 25, 2018
Messages
303
Location
Cambridge UK
Ride
2020 Rocket 3 R 15 Rocket Roadster
little advice needed, I’ve got a 65 plate Roadster and while all is well and she’s a cracking machine the gearbox takes some getting used to especially coming from the Thunderbird storm which had a fantastically smooth shift..

My point of concern could be self generated and compounded from reading all the horror stories of transmission failures etc, however I’ve noticed that shifting up into fourth gear offers a slight bit of resistance as compared to the others almost feels like a grind but it’s hard to tell I appreciate that the it’s a big old dog box so I’m not expecting a snikerty snick shift but I’d rather catch an issue before it develops. Any info or advice blokes can offer will be most appreciated.
 
First and one of the most important things is to have the clutch free play adjusted correctly: 2 to 3 mm. Any more and you're still turning the inner hub in the clutch. Too much free play and you'll burn up the lifter shaft. Next (and I'm only talking what I have noticed on the site), there are oils that seem to have more lubricity than others although they have the same specifications. If you read widely you'll find that people find the transmission shifts easier/smoother using Mobile 1 4RT versus Castrol. I know Motul 300V 15W50 is a superior oil but does not last as long because of its non-detergent chemical formulation. I bet one would get some good reviews if they started running Amsoil's 20W50 motorcycle oil but it hasn't yet been reported. Myself thanks to on-the-shelf availability use Redline 20W50 4RT motorcycle oil at the recommendation of Megacycle Cams (they also spoke highly about Motul oils). Anyway, check the clutch; 95% of the time the adjustment is out (especially if it was done at the steelership). Or you were told it was done.
 
Last edited by a moderator:
I've got to ask: What's a 65 plate Roadster?
 
I appreciate the oil advice, something worth looking into, as far as the clutch goes i adjusted it myself to spec using a vernier calliper so I’m confident that it’s correct I very rarely take the stealers word for much.