A Quick (Not Necessarily Fast) Bike

A fast bike has a big number top speed. It is measured by a speedometer.

A quick bike accelerates at low speed, wanting to buck you off the saddle. Quickness is measured by a stopwatch.

Depending on gear ratio, a fast bike can also be quick or not.

A quick bike can also be fast or not.

Brute torque in a vehicle produces fast times for the first 60 feet in a quarter miles. On a bicycle it's probably wayy less than 60 feet.

Does anyone know of a way for all of us to measure and compare our motored bike's quickness?
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Honey, it's just a bicycle. and i REALLY need it to excercise, and to ride it to work.(hehe)

Yes, with an hour glass or a sun dial.

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If it ain't broke, and you mess with it long enough, it will be.

Thats a good question and a very interesting one. We would have to set a standard measurement time over perhaps a precisly measured 500 feet? I know my bike is already well into its maximum speed in about one city block. It takes I,m guessing here about 10-15 seconds of acceleration to get to maximum speed. so we need to set a standard so that everyone can measure exactly the same way.

How about a realistic 0-20 mph time? Average cruise is around 20-24 mph. I think that would be our equivalent of the standard 0-60 time.

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If it ain't broke, and you mess with it long enough, it will be.

That might not work Joe,everybodys speedometer is different and most are not accurate. You could have 2 M.Bs side by side going at the same speed and both will get different speedo readings. It needs to be a measured distance and timed with a stopwatch .

I have one word to share. Dyno. Having access to one is going to be necessary at some point to find out all there is to know about the hp, torque and how it relates to gearing of the motors we are all using. Unfortunately there are many types of motors and all are somewhat different so it might be awhile but the results should start trickling in by Spring....or sooner?

Need a MC dyno...i tried a chassis dyno and ripped my spokes out
The roller was just to heavy for our little bikes

Got it covered.

How about a dragstrip, you could measure 60ft times, and have enough track to get up to top speed. 1/8 mile should be long enough. Ive considered this already but would wanna go with another motored bike. Making winning factors mods and the riders pedal effort off the line.

Couldnt see myself running at the track alone though.

For cars and motorcycles, it's 60-foot times.

For bicycles, it might be 20-foot times...or less.

That's how I like it...short. You could do it in a parking lot or pavement anywhere and not attract as much attention as racing down the city block.

A medium quick street car racer might have 60-foot times of two seconds or less.

Let's say that a medium quick motorized bike might have x-foot times of maybe y seconds or less.

We need to find how many feet is x feet.

Znsane Rider probably has a quick and fast bike, as do many with push trailers. EZRider has a quick and fast bike.

With twin engines and 4.4hp, my bike is quick but not geared to be fast. One engine has 18.75:1 gearbox, the other has 1.25:1 roller. Maybe it could be quicker AND faster by experimenting with various gear ratios.

JMO, if we can standardize the amount of feet to be traveled and the number of seconds, EVERYONE(!) can participate and compare their quick motored bikes against everyone else!

All it would take is an affordable stopwatch, a piece of chalk and a 20-foot piece of string to measure distance.

It will also allow everyone to modify their bikes and gauge each improvement regarding performance, like different engines, pipes, tires, gearing, weight loss.

This is exciting! I could compare my stats with Happy Time riders, or anyone else.