Planet Minis

DuckBoy · 03-22-2009, 12:04 PM

Whats are the differences between these other then the obvious CC difference?

tmas · 03-22-2009, 12:16 PM

ST has spoked wheels.
tmas

doopsx3 · 03-22-2009, 12:36 PM

ST has a different engine design and mounting...different ignition and charging

doopsx3 · 03-22-2009, 12:37 PM

Quote:

Originally Posted by doopsx3

ST has a different engine design and mounting...different ignition and charging

that is ST90 Honda Trail style (stamped frame early 70's) not SkyTeam

DuckBoy · 03-22-2009, 01:32 PM

So it doesn't except the generic monkey style motor??

Z · 03-22-2009, 01:49 PM

Quote:

Originally Posted by DuckBoy

So it doesn't except the generic monkey style motor??

A Honda ST90 does not. It shares the same engine as a Honda CT90.

gstegman · 03-22-2009, 01:56 PM

Quote:

Originally Posted by DuckBoy

So it doesn't except the generic monkey style motor??

You can do it you trust the brackets.

REAR_MOTOR_MOUNT ADAPTOR_KIT CHINA_ENGINES TO_CT90/CT110 (BCI123000)

DuckBoy · 03-22-2009, 02:41 PM

Reason i ask this is because i found a full st90 everything there for 50 bux but i want a ct70 so i didn't know how identical they were as i have yet to see a st90 in person. but thank you for all the info.

doopsx3 · 03-22-2009, 02:44 PM

$50 WOW great deal......the ST90 looks alot like the CT just with 14" spoke wheels......really just a larger version of th CT....great bike

DuckBoy · 03-22-2009, 03:35 PM

I'm gonna go pick it up with intentions of finding someone with an old clunker ct 70 that will make a trade. I don't know what it is but ct70 just pulls me in i must have one!

gstegman · 03-22-2009, 03:35 PM

If the air cleaner is there and in decent shape thats more than worth it just for that part.

s_10onbagz · 03-22-2009, 04:05 PM

Quote:

Originally Posted by Z

A Honda ST90 does not. It shares the same engine as a Honda CT90.

Not to my knowledge buddy. ST90 has the same motor as a CM91 Cub, auto clutch 3 speed. The CT90 is a dual range 8 speed motor.

doopsx3 · 03-22-2009, 04:29 PM

Quote:

Originally Posted by s_10onbagz

Not to my knowledge buddy. ST90 has the same motor as a CM91 Cub, auto clutch 3 speed. The CT90 is a dual range 8 speed motor.

actually the dual range is an addition to the left side cases...the motor part and most items located inside the main cases of the engines are alot alike

s_10onbagz · 03-22-2009, 04:58 PM

CT90 might be similar, but a CM91 is almost the exact same motor.

dirtbkr188 · 03-22-2009, 05:52 PM

Not all the CT90s had the dual-range transmission. The pre-cursor to the CT90, the CT200 Trail 90 had a pushrod engine with a 4-speed auto trans, and the early CT90K0 Models had the OHC 4-speed with dual overlay rear sprockets.

s_10onbagz · 03-23-2009, 12:36 AM

still not the same as an st90, but nice recovery.

Funny enough, the OHV 90 motors mount right up to any Honda 50 frame. This is what made my OHC conversion in my CM90 so easy. You still need the footpeg bracket or a new style foot peg though.

shw911 · 03-23-2009, 02:02 AM

ST90 swingarm mounts on the outside of the frame and the CT70 mounts inside the rear of the frame.

HymieP · 03-23-2009, 07:27 AM

The ST90 seats are made better, stronger welds and don't bend and break where the CT70's do. Hard to come by but do fit the CT70's nicely. IMO

DuckBoy · 03-23-2009, 10:21 AM

Thank you for all the info once again! I like the frame style of the ct70 an st90 but i like the ct for the swinger mounting inside of the frame i think it looks very trick. An im not a fan of spoked wheels. If i purchase it is there enough people around that would be intrested in parts or the hole bike? Im not trying to make any money off of it im just a fan of seeing old bikes being riden still as this bike has sat in his attact for prolly 15 years. Im sure someone would pay 50 to 100 an try to get it going to ride you think? I honestly think it just needs to be cleaned up an serviced an itll go.

mexicanyella · 03-26-2009, 08:13 AM

I've only seen one actual running ST90 in my life, but a friend who's owned and worked on most of Honda's smaller bikes through the 70s told me, when I had a question similar to yours ("Hey, check this out, here's a complete ST90 for $XX!") that he'd had two or three STs through his shop over the years and both were real nice cushy rides, comfortable and fun, and both of them had one gear bad in the transmission. Can't remember if he said it was 2nd or 3rd, but they both had the same problem, and he commented that he'd never run into that on any of the other old-style OHC 90 (89cc) motors before. We'd both experienced failed hi/lo boxes on ATC90s, but that's a lot more weight and rolling resistance and traction than a bike...

...I think STs look cool but they've been overlooked by the aftermarket. A CT would be easier. An ST would be a neat bike to have if you were serious about having an ST, or wanted to go totally wildass custom like doopsX3's bike, but it would not be the most direct, convenient route to getting onto a small Honda and keeping it running with readily available parts.

03-22-2009, 12:04 PM	#1 (permalink)
DuckBoy PM Newbie Join Date: Feb 2009 Location: Central Texas Posts: 87	CT70 vs ST90 Whats are the differences between these other then the obvious CC difference?

03-22-2009, 12:16 PM	#2 (permalink)
tmas ZB50 Jedi Join Date: Apr 2005 Location: Toronto Posts: 4,107	Re: CT70 vs ST90 ST has spoked wheels. tmas

03-22-2009, 12:36 PM	#3 (permalink)
doopsx3 3rd Gear Member Join Date: Aug 2008 Location: San Diego Posts: 3,926 My Mood:	Re: CT70 vs ST90 ST has a different engine design and mounting...different ignition and charging

03-22-2009, 01:32 PM	#5 (permalink)
DuckBoy PM Newbie Join Date: Feb 2009 Location: Central Texas Posts: 87	Re: CT70 vs ST90 So it doesn't except the generic monkey style motor??

03-22-2009, 02:41 PM	#8 (permalink)
DuckBoy PM Newbie Join Date: Feb 2009 Location: Central Texas Posts: 87	Re: CT70 vs ST90 Reason i ask this is because i found a full st90 everything there for 50 bux but i want a ct70 so i didn't know how identical they were as i have yet to see a st90 in person. but thank you for all the info.

03-22-2009, 02:44 PM	#9 (permalink)
doopsx3 3rd Gear Member Join Date: Aug 2008 Location: San Diego Posts: 3,926 My Mood:	Re: CT70 vs ST90 $50 WOW great deal......the ST90 looks alot like the CT just with 14" spoke wheels......really just a larger version of th CT....great bike

03-22-2009, 03:35 PM	#10 (permalink)
DuckBoy PM Newbie Join Date: Feb 2009 Location: Central Texas Posts: 87	Re: CT70 vs ST90 I'm gonna go pick it up with intentions of finding someone with an old clunker ct 70 that will make a trade. I don't know what it is but ct70 just pulls me in i must have one!

03-22-2009, 03:35 PM	#11 (permalink)
gstegman "The Steg" Join Date: Jan 2008 Location: Castro Valley, CA Posts: 983	Re: CT70 vs ST90 If the air cleaner is there and in decent shape thats more than worth it just for that part.

03-22-2009, 04:58 PM	#14 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: CT70 vs ST90 CT90 might be similar, but a CM91 is almost the exact same motor.

03-22-2009, 05:52 PM	#15 (permalink)
dirtbkr188 3rd Gear Member Join Date: May 2004 Location: New Jersey Posts: 2,971	Re: CT70 vs ST90 Not all the CT90s had the dual-range transmission. The pre-cursor to the CT90, the CT200 Trail 90 had a pushrod engine with a 4-speed auto trans, and the early CT90K0 Models had the OHC 4-speed with dual overlay rear sprockets.

03-23-2009, 12:36 AM	#16 (permalink)
s_10onbagz 3rd Gear Member Join Date: Sep 2007 Location: Connecticut. Posts: 1,550	Re: CT70 vs ST90 still not the same as an st90, but nice recovery. Funny enough, the OHV 90 motors mount right up to any Honda 50 frame. This is what made my OHC conversion in my CM90 so easy. You still need the footpeg bracket or a new style foot peg though.

03-23-2009, 02:02 AM	#17 (permalink)
shw911 "Eating Ramen" Join Date: Feb 2007 Location: Los Angeles, CA Posts: 1,894	Re: CT70 vs ST90 ST90 swingarm mounts on the outside of the frame and the CT70 mounts inside the rear of the frame.

03-23-2009, 07:27 AM	#18 (permalink)
HymieP 2nd Gear Member Join Date: May 2008 Location: Norman, OK Posts: 300	Re: CT70 vs ST90 The ST90 seats are made better, stronger welds and don't bend and break where the CT70's do. Hard to come by but do fit the CT70's nicely. IMO

03-23-2009, 10:21 AM	#19 (permalink)
DuckBoy PM Newbie Join Date: Feb 2009 Location: Central Texas Posts: 87	Re: CT70 vs ST90 Thank you for all the info once again! I like the frame style of the ct70 an st90 but i like the ct for the swinger mounting inside of the frame i think it looks very trick. An im not a fan of spoked wheels. If i purchase it is there enough people around that would be intrested in parts or the hole bike? Im not trying to make any money off of it im just a fan of seeing old bikes being riden still as this bike has sat in his attact for prolly 15 years. Im sure someone would pay 50 to 100 an try to get it going to ride you think? I honestly think it just needs to be cleaned up an serviced an itll go.

03-26-2009, 08:13 AM	#20 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 974	Re: CT70 vs ST90 I've only seen one actual running ST90 in my life, but a friend who's owned and worked on most of Honda's smaller bikes through the 70s told me, when I had a question similar to yours ("Hey, check this out, here's a complete ST90 for $XX!") that he'd had two or three STs through his shop over the years and both were real nice cushy rides, comfortable and fun, and both of them had one gear bad in the transmission. Can't remember if he said it was 2nd or 3rd, but they both had the same problem, and he commented that he'd never run into that on any of the other old-style OHC 90 (89cc) motors before. We'd both experienced failed hi/lo boxes on ATC90s, but that's a lot more weight and rolling resistance and traction than a bike... ...I think STs look cool but they've been overlooked by the aftermarket. A CT would be easier. An ST would be a neat bike to have if you were serious about having an ST, or wanted to go totally wildass custom like doopsX3's bike, but it would not be the most direct, convenient route to getting onto a small Honda and keeping it running with readily available parts.

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