Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Previous owner fitted a smaller rear sprocket to my 1976 F1, it pulls 60mph @ 3500rpm.It's nice and relaxed and pulls top gear fine when two up touring loaded with camping gear etc.So yes I can recommend a smaller rear sprocket.Hope this helps.(Photo taken on route to Honda4Fest earlier this month)
Hi,Just checked my F1 gearing for you.Rear sprocket - 43tRear chain - 98 rollers (49 links)Also I'm sure the front sprocket is still the standard size.Hope this helpsSkoti