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How many gears is too many?

Started by VladTepes, Friday, 08 September 2017, 04:39 PM

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VladTepes


Yammie XJR  owners claim 5 is enough.
We all know 6 is a better number.


So is 14, do you think, sufficient?


and what if that were to deal with the POWER!!!!!! of a 50cc parallel twin?






Yep 50, that was not a  typo.


Quote from: Suzuki MotorcyclesBeen there, done that!


Suzuki RK67 racing motorcycle






http://www.bikeexif.com/suzuki-rk67




So the question is..... Is this a "14" you'd like to own...?

Ottomans: 'Hippity hoppity, Vienna's our property"
...and then the Winged Hussars arrived.

Vlad's K7 "Back in Black"
YouTubeLandyVlad Rides

KiwiCol

Certainly is an amazing piece of engineering for sure, but it's way too small & I'm way too big for it.
I'd be the proverbial "gorilla f**king a football"  (acknowledgments to Rogues for the adage)
😎  Always looking for the next corner.  😎

Mick_J

A long time ago 3 gears was enough, then it was 4, then 5 now 6, fantic's had 7, my car has 7.  It will go on as long as there is space to shove them in or we all go electric and go back to 1.
Keep the rubber side down.          Mick

T 24

Less torq in narrow area -> more gears is needed. More torq, less gears. Forget that emission nonsense.

Teufel

Or maybe 16.
How awesome is this?

At the end of 1967 Suzuki turns up with a sensation by presenting a brand new three cylinder, afraid of the possibility that Honda would bring out, as rumours had it, a three cylinder in 1968.

The RP68 was a very interesting machine, it has 2 lying and 1 standing water cooled cylinders, Behind the standing cylinder the waterpump installed driving off the gearbox. The bore and stroke were 28x 25mm. This little engine had rotary disc intakes, and was given a rev range and BHP up to 19 bhp at 20.000 rpm, good for some 200km/h. It had a power band of 500 revs and it needed 16 gears.
Description
Engine type: Liquid-cooled 49.87 cc 3 Cylinder in V
Triple rotating discs valves 2-stroke.
19.0bhp/ 19.000 rpm.
Bore x stroke: 3 x 28 x 25 mm
Carburetor type: 3 x Mikuni 20mm
Compression ratio: 8.8:1
Top speed: 200 kph
Clutch type: Dry multiple plates
Transmission: 16 speed
Rotating drum type box straight cut gears
Tyres: 2.00-18 / 2.25-18
Brake type (front): 1 drum, 2 cam
Brake type (rear): 1 drum, 1 cam

Andre

Quote from: mjgt on Friday, 08 September  2017, 06:22 PM
A long time ago 3 gears was enough, then it was 4, then 5 now 6, fantic's had 7, my car has 7.  It will go on as long as there is space to shove them in or we all go electric and go back to 1.

Our 14 would do ok with 3 gears  :grin:

KiwiCol

I wonder how the RP68 would have gone with a CVT?  Have it get to the powerband & stay there using CVT.  Be lighter & less complicated. 200K is astonishing!  :notworthy:
😎  Always looking for the next corner.  😎

Teufel

Yes KC, it's insane.
I was so sad when all the new regulations came in.
I loved the insanity of the Honda 125 5 cylinder (FOUR stroke WTF) and the 125 V4 Suzuki.

CVT
Ha Ha. How much of the 19 hp do you think you'd lose?

Are you really a Maori God?

Batkwaka

I always thought 5 gears was enough on my 1100 Katana. Interestingly both the Katana and the 1400 have the same road speed in 5th gear.
May the sun be warm & shining and your roads be smooth & winding.

KiwiCol

Quote from: Teufel on Saturday, 09 September  2017, 08:47 AM
Yes KC, it's insane.
I was so sad when all the new regulations came in.
I loved the insanity of the Honda 125 5 cylinder (FOUR stroke WTF) and the 125 V4 Suzuki.

CVT
Ha Ha. How much of the 19 hp do you think you'd lose?

Are you really a Maori God?
No mate, I are a white boy n certainly no God.
😎  Always looking for the next corner.  😎

Justforkiks

I don't know? How lazy are you. :whatever:
I personally enjoy big torque of the 14 and shifting all the time on a long journey get real tiring.
I keep it in 5th and just play with the throttle  :8:
6th gear is used on the motorway.

Would I go CVT route. Errr no  that just feels like cheating in some way!!! :whatever:
Bad decisions make the best stories

KiwiCol

It's awesome on the quad bike, full power n go!
😎  Always looking for the next corner.  😎

KiwiCol

Having said that, would I want the 14 to have CVT? No.  It was for the wee 50cc that had a power band of 500 rpm, just an idea.
😎  Always looking for the next corner.  😎

Speedy1959

I think 5 gears with the ratios a bit wider apart would have been plenty for the 14..
You could still retain the same ratio for 5th.. So revs would be the same at any given speed in top gear.
My Honda CB1300 had 5 gears but in that bikes case the top gear was too low (4000rpm at 70mph If I remember correctly).

KiwiCol

I think the 14's would be about the same (in top gear), 4000rpm would be around 120K or 70mph.
😎  Always looking for the next corner.  😎

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