Automatic Transmissions

ATKpilot99
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Lake Geneva, WI US
Edited Date/Time 4/29/2023 3:16pm

https://motocrossactionmag.com/mxa-tech-spec-pursuing-the-automatic-tra…

This article is a few years old but I thought pretty interesting . I had no idea Honda was testing an auto in 91 although it was still a 2 speed . Autos never really gained a foothold even though it seemed to improve some riders's results like like Bo Edberg on the Husky . 

Anyone ever rode one ?

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YLLIBLLIH
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Afton, TN US
4/29/2023 3:36pm

Husky auto 430, 87 model . Dad did the National hare scramble series on it. Great for woods but no way for moto

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ATKpilot99
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4/30/2023 9:05am

I'd love to find a Rokon . They made Super Hunky Rick Siemen's worst bikes of all time list but that's ok , I like weird bikes .  

Did Don Kudalski ever race a Rokon in national competition ? There's nothing in the vault that would indicate so .

 

Hasletjoe
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Haslet, TX US
4/30/2023 7:22pm

Husky started with a 360 Auto in 1976. These bikes shifted just like your mom's Oldsmobile. Rokon was fun tor ride in Vintage events. Worked best in Cross Country as this old guy wore down. Needs a better cup holder! 

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ktmdan
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Houston, TX US
4/30/2023 7:25pm

I think the Honda goldwings have had DCTs for many years now. I hear the stark will be auto trans Smile

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The Shop

4/30/2023 7:47pm
ATKpilot99 wrote:
https://motocrossactionmag.com/mxa-tech-spec-pursuing-the-automatic-transmission-dream/ This article is a few years old but I thought pretty interesting . I had no idea Honda was testing an auto in 91 although...

https://motocrossactionmag.com/mxa-tech-spec-pursuing-the-automatic-tra…

This article is a few years old but I thought pretty interesting . I had no idea Honda was testing an auto in 91 although it was still a 2 speed . Autos never really gained a foothold even though it seemed to improve some riders's results like like Bo Edberg on the Husky . 

Anyone ever rode one ?

Honda won the Japanese Motocross Nationals on the 1991 RC250MA automatic, there is no shifter, so no gear changes while riding...

image-20230501123452-1

https://www.youtube.com/watch?v=HeKVvcxGpAg

https://www-honda-co-jp.translate.goog/tech/motor/close-up/hmt/?_x_tr_s…

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sumdood
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San Clemente, CA US
Fantasy
4/30/2023 10:04pm

MINIBIKES BOB AND GREG

 I've owned 3 motorcycles with automatic transmissions. A PW50 and these 2 

4
PNWMXer
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Washington, WA US
5/1/2023 5:20am Edited Date/Time 5/1/2023 5:20am

As I recall, both Johnson and Bayle tested the RC Automatic. RJ thought it had promise for outdoors but not SX, and Bayle got to a point where he asked if he was going to be able to race it full-time and when told no, said that he didn’t want to test it anymore. If I’m not mistaken, one or both of them raced it in at least one Japan race.

I believe they wanted to be able to develop and sell it, but couldn’t make it cost-effective.

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YLLIBLLIH
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Afton, TN US
5/3/2023 4:45pm

Id like to know what honda had , because there is no way you could ride a chainsaw type drive unit and clear stuff. To unpredictable. Husky had 3 speeds and 2 clutch drums with shoes and springs just like a saw. Litght to stiff springs were how one dialed in rpm lockup point which dictated the shift point for next clutch to apply.  
 

in woods over snot covered ground and roots they out performed standard tranny but moto where the clutch is used for flight attitude or to lift front over a hole and such the auto just didn’t have that . And zero engine braking, it just freewheels

5/4/2023 7:39am Edited Date/Time 5/4/2023 7:40am
YLLIBLLIH wrote:
Id like to know what honda had , because there is no way you could ride a chainsaw type drive unit and clear stuff. To unpredictable...

Id like to know what honda had , because there is no way you could ride a chainsaw type drive unit and clear stuff. To unpredictable. Husky had 3 speeds and 2 clutch drums with shoes and springs just like a saw. Litght to stiff springs were how one dialed in rpm lockup point which dictated the shift point for next clutch to apply.  
 

in woods over snot covered ground and roots they out performed standard tranny but moto where the clutch is used for flight attitude or to lift front over a hole and such the auto just didn’t have that . And zero engine braking, it just freewheels

Honda used a hydro-mechanical transmission...

image-20230505003516-1

image-20230505003800-2

 

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YLLIBLLIH
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Afton, TN US
5/4/2023 9:50am

Yeah, now that would be more responsive 

Forty
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Saint Paul, MN US
5/4/2023 11:06am
Hasletjoe wrote:
Husky started with a 360 Auto in 1976. These bikes shifted just like your mom's Oldsmobile. Rokon was fun tor ride in Vintage events. Worked best...

Husky started with a 360 Auto in 1976. These bikes shifted just like your mom's Oldsmobile. Rokon was fun tor ride in Vintage events. Worked best in Cross Country as this old guy wore down. Needs a better cup holder! 

Didn't Arlo Englund race one in the nationals?  I thought that was a true story, hazy memory.

Mr Happy
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GB
5/4/2023 11:34am
Hasletjoe wrote:
Husky started with a 360 Auto in 1976. These bikes shifted just like your mom's Oldsmobile. Rokon was fun tor ride in Vintage events. Worked best...

Husky started with a 360 Auto in 1976. These bikes shifted just like your mom's Oldsmobile. Rokon was fun tor ride in Vintage events. Worked best in Cross Country as this old guy wore down. Needs a better cup holder! 

Was at a track where someone turned up with a 360 auto they had just spent a load of money getting raceable. They did two laps on it and didn't go out again as they didn't like it. Seemed to be one of those bikes that's a rarity for a good reason.

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