I've never heard of them, but if they're Japanese, they're probably OK. Don't think that an "O" ring chain will last longer, or require less maintenance than a non "O" ring chain though, the grease in an O ring chain only protects the insides of the rollers, so you still need to lube the outsides. "Non O Ring" chains are cheaper, and in my opinion, just as good, and on older bikes like ours, more than adequate.
"Old Bike Barn" are advertising new Keihin CR31mm carbs for $699.95 as one of their newest catalogue items, so I emailed them to ask if they have them in stock, because Sudco say there are none in the US, and I tell OBB that I am hesitant just to order a set from them and pay in advance as they have something of a poor reputation on this site and my other favourite site, "The GS Resources" for advertising items that they have no stock of, and being unable or very slow to supply, etc etc.
I got an email back the next day saying that OOB haven't been in business for 25 years for screwing their customers around etc etc, but then they admitted that they had no stocks of any Keihin CR carbs. Make up your own mind about them, but I suggest that they aren't the kinda guys I want to entrust with my money............. Cheers, Terry.
