Hutch wrote on 12/31/69 at 16:00:03:
This will probably confuse even more. The JT site lists as 1980 GS550ET, LT. When I went to the Honda shop to oder mine the book just listed it as "spoke" or "cast" wheel. As long as you order for the CAST wheel, you will have the correct ones. The rear can be had in 38-52 tooth, and the front in 13-18 tooth. The 18 tooth would not work because of clearance. Any of the back will work.I ran with the 17/43 for 14.5% change, and have a 14 tooth extra front to make it accelerate faster if I want. It will only take a few minutes to swap out front sprocket to change the bike completely. I f you want a good compromise and not change the sprockets all the time, the 16/43 would probably be the best with a 9-10% change and save you 450-500 RPM at 80mph. The possibilities are endless with all the gear ratios you can come up with. Take it from MILD to WILD, it's your choice.
I know...but the difference is that all dealers are different in how they list stuff, and I don't particularly like my local Honda, Yamaha, Suzuki, Kawasaki dealership. This supplier lists them by model number directly from JT, and the price is a few dollars less for both sprockets.
This site also lists some variations for each bike too...14. 15. 16 etc.
I'd really rather order from this site (I have before) than to travel to Michigan and order at your Honda dealership
I'll do a little more surfing then....