gearing question

[steve chapman]

looking for some advise , what diffrence would changing my rear sprocket from a 46 tooth to a 47 . my current set up is super monza tv200, box 15 x 46 , my problem is when running with a group at 60 ish , my bike is just about to come on the pipe and makes it very difficult to ride , any help would be good , thanks steve

[fairspares]

it wont make that much difference 4.45 to 4.54 final drive ratio , depending on the power /torque to revs your engine is producing and how you use the scooter id say you have the wrong gearbox, ideally you want italian li150 and look at 4.9 to 4.7 final ratio again depending on how you ride .

[steve chapman]

thanks for your reply fairspare when i built the engine the choice was

tv200 with 15/46 for top speed tv200 15/47 for normal use

li150 ( not spanish ) 18/47 for top speed 17/46 for normal use

as ive said i chose the tv200 with 15/47 do you think maybee i went the wrong way

the engine makes 30+ hp and 20 ft/ld of torque i tend to ride with others (ts1 and rbs)

and my bike wants to run at 10 - 15 mph faster to run just right

steve

[wezly]

Leave the scooter as it is, and make new friends.

[steve chapman]

yea like that wezly

[Tom Russell]

Hi Steve,

I've considered trying 15 x 48 (81 link chain) with same GT gearbox in mine, which gives 4.65 fourth gear ratio.

You might loose some top speed - in perfect conditions - but should be easier at low speeds, and on the pipe - 5.5k rpm - at 60.

In any event, let us know what you decide to do?

Cheers

[Muppet]

choice of rear tire cud help too or fittin what y mite have on a 4inch rim

[nelson pk]

thanks for your reply fairspare when i built the engine the choice was

tv200 with 15/46 for top speed tv200 15/47 for normal use

li150 ( not spanish ) 18/47 for top speed 17/46 for normal use

as ive said i chose the tv200 with 15/47 do you think maybee i went the wrong way

the engine makes 30+ hp and 20 ft/ld of torque i tend to ride with others (ts1 and rbs)

and my bike wants to run at 10 - 15 mph faster to run just right

steve

Hi Steve, recommended sm ratios on TV200 box (which is the recommended box as you know. li150 would be second best) are 15/46 for normal use which gives you 4.44 or 16/47 which is for touring and is longer at 4.27 so you chose right.
Tell your friends to stop riding like girls or just ride ahead and let them catch up once in a while

[Muttley McLadd]

yea like that wezly

Joking aside.. why are the TS1s and RBs riding so slowly?

[steve chapman]

Hi Steve,

I've considered trying 15 x 48 (81 link chain) with same GT gearbox in mine, which gives 4.65 fourth gear ratio.

You might loose some top speed - in perfect conditions - but should be easier at low speeds, and on the pipe - 5.5k rpm - at 60.

In any event, let us know what you decide to do?

Cheers

yea will let you know what i decide Tom , are you feeling the same with yours , Steve