For some reason the last time I reattached the oil tank to my 1974 Commando I had a terrible time getting everything lined up mainly due to the rear chain oiler attachment. I've been meaning to plug it up for years. I'm just looking for ideas on how to do it. I have aftermarket rims on the bike, which allowed me to add a rear disk brake. Unfortunately the front speedometer drive no longer fits. So I haven't had a speedometer for the last 15+ years. I've seen bikes at rallies with non stock drives attached to either the front or bike wheels. Has anyone dealt with this situation?