Hitchcocks Forum

Hi Chaps, I'm in the planning stage of changing the chain and sprockets on my EFI classic 500. Apart from hosts chain and sprocket set, is there anything else I need? Gaskets or seals? And any potential Pit falls to be avoided please?

I'd be interested in this too. I imagine our hosts would be happy to advise. My experience so far with them has been excellent, even to the point of advising me not to buy a certain part as not being necessary when buying a new silencer. So you know you'll get fair and impartial guidance.

The 19 tooth gearbox sprocket is a sensible upgrade. It has made a big difference to mine at higher speeds. You may also need access to a puller as it can be difficult to get the sprocket off.

I had the bigger gearbox sprocket fitted last month at the 26000 mile service and have done about 1500 miles since. I would say it is worth doing if you are having a new chain and sprockets anyway, as I was. It doesn't seem to make much difference at the top end (it is only 6% higher) but cruising at 60 is a bit more relaxed. The biggest difference is that the intermediate gears are also longer and much better suited to UK roads, so big roundabouts, road junctions and 30/40 speed limits now have a gear that suits. 4th is a much more usable overtaking gear. It is much nicer to ride, especially on B roads, where it is a lot quicker more of the time. Fuel consumption hasn't changed noticeably. Hope that helps.

Thanks Guys. I knew I could count on you.