What about the CT-200 Trail 90? What about the CT-70? What about the other 90cc bikes?
Realistically, this page is specifically for the CT-90 and CT-110, as built from 1968 to 1986 for sale in the USA. I do get questions about the other bikes, so here's some comments.
CT-200 Trail 90
Anything built with the pushrod (non-overhead-cam) engine is not a CT-90. It is a CT-200 Trail 90, built until 1967. If it's old enough it might even be a Trail 55 or Trail 50. Those early bikes have some parts in common with the early K0 and K1 CT-90s, but the engine is quite different. The original engine was a pushrod motor, whereas the later bikes are overhead valve/overhead cam. You can tell immediately: the OHC engines have a large blob on the left side of the head that houses the points and permits access to the cam... the earlier bikes have a spark-plug hole there.
It may be possible to transplant a later engine into a CT-200 frame, but I've never seen one. Parts for those machines are hard to come by. Buy a parts bike if you can.
CT-70
The CT-70, also known as the "Trail 70," is another sought-after small Honda, but it shares almost nothing in common with the CT-90. The engine is different, the frame, wheels, controls and seat are all different. The CT-70 is closer in size to a minibike than the 90 is, and because they're so different none of the information here really applies to the CT-70. There are, however, sites for the Trail 70 elsewhere on the net.
Other 90cc Hondas
Honda built many, many different 90cc machines. If you have an ST-90, an SL-90, a CD-90, a CM-90, a CL-90 or an S-90, many of the parts and procedures are the same on those bikes as the early CT-90 because the engine is mostly or entirely the same. I don't attempt to address these rarer variations of the 90cc series except to say that the engines and the gearboxes are a lot a like, and you'll have a terrible time finding frame or appearance parts for them.
Still other things
I don't know of many sites for other trail-type cycles. Rokon trail bikes (2-wheel drive monsters) have quite a following and there are several sites for them. Yamaha built a trail-type cycle about which I know almost nothing. Various other makers may have also built bikes like this. Honda was by far the biggest maker of this type of machine.
Yes, there is a modern CT-200. Honda is either still making it or just recently stopped, depending on who you ask. It has pretty much nothing in common with the CT-90 and CT-110, and I won't comment on it. They pretty much don't exist in the USA and were never sold here in quanitity. Same thing with the CT-125, which is an older machine more in line with the CT-110. It, too, is very rare in the USA and you'll have a hard time finding one or parts for it.
The CT-110 was still manufactured as recently as 1999 for sale to the Australian Post Office. That variant lacks the dual-speed gearbox and has a couple other minor differences, but in all other respects it's a standard 110. There's an enthusiastic following in Australia for these bikes but I have little information in the USA about them because Honda stopped selling the 110 here after 1986.
Last updated:
05/11/2002