sprocket

[popmynutsy]

can some1 explain what does the different sprocket means? cause from what i know, got cornering sprocket, long distance sprocket and short distance sprocket. but i dont understand how it works. so wondering if u guys care to enlighten me.

[stsoh]

do u got 10 speed bicycle?

study it n try to understand.

it's a very good example.

 

when u cycle n change speed, your leg power is actually engine power.

when engage with big sprocket at front n small sprocket at rear,

u need more power to cycle it n u can achieve top speed.

 

in reverse order, engage with smaller front sprocket n biggest rear sprocket.

u can peddle with little efforts, your speed seem very slow n u can climb up any slopes.

but u can't if u were to have big front/small rear sprockets.

 

this principle applies to motorcycle too.

 

to cover long distance u might want bigger front n smaller rear sprockets.

if u want to race, keep the engine rev at redline effortless thru out all gears,

u should use smaller front n bigger rear sprocket ratio.

 

wat r the sizes of sprockets to use?

they should be about one or two teeth more or less of your stock sprocket depends on your engine power to drive your bike.

[popmynutsy]

do u got 10 speed bicycle?

study it n try to understand.

it's a very good example.

 

when u cycle n change speed, your leg power is actually engine power.

when engage with big sprocket at front n small sprocket at rear,

u need more power to cycle it n u can achieve top speed.

 

in reverse order, engage with smaller front sprocket n biggest rear sprocket.

u can peddle with little efforts, your speed seem very slow n u can climb up any slopes.

but u can't if u were to have big front/small rear sprockets.

 

this principle applies to motorcycle too.

 

to cover long distance u might want bigger front n smaller rear sprockets.

if u want to race, keep the engine rev at redline effortless thru out all gears,

u should use smaller front n bigger rear sprocket ratio.

 

wat r the sizes of sprockets to use?

they should be about one or two teeth more or less of your stock sprocket depends on your engine power to drive your bike.

 

oic. ty. but why when people corner, people shift down gear? why dont they just corner at the gear they are using?

[stsoh]

reason is very simple, maintaining at same gear won't get u out a corner fast.

when u down shift a gear means changing to a smaller front gear ratio,

so tat engine will have power to launch out of the corner.

 

tall ratio to drive at top speed.

short ratio to have power drive.

 

be warn!

powering out a corner will high-side your bike.

wat it mean is the rear wheel spin too fast n move toward front surpassing front wheel, resulted in crashes.

tat y in any moto racing u can see many crashes out of corners.

[Raptor]

oic. ty. but why when people corner, people shift down gear? why dont they just corner at the gear they are using?

 

Since I am the one that moved your thread from the "On the Track Forum".. let me try and explain to you the advantages of downshifting.

 

Downshifting is critical on the tracks.. since we don't use the rear brakes much. Downshifting from high speeds allow the rpms to stay high, especially in the max torque rpm zone.

 

Look at your bike brochure.. it will tell you max torque rpm and max bhp horsepower rpm.

 

When the rpms are anywhere near the max torque rpm... any closing of the throttle will have a very strong slowing down of the bike...as though you stepped on the rear brake. This effect is called engine braking. You are using the engine resistance to turning, since throttle is closed, to slow the bike down.

 

At high speeds.. entering a corner on a high gear will cause the bike to 'float' and it will not want to take the corner but rather drift outwards to the outside of the corner.

 

You downshift to keep the engine rpms high to have that trail braking effect into the corner and when you close the throttle it will slow the bike and 'pull' it into the corner.

 

Try taking a corner on 5th gear, then try lower gears but at the same speed... and you will know what I mean. But please find a safe quiet place to try it... I don't want you killing yourself on the roads.

[popmynutsy]

Since I am the one that moved your thread from the "On the Track Forum".. let me try and explain to you the advantages of downshifting.

 

Downshifting is critical on the tracks.. since we don't use the rear brakes much. Downshifting from high speeds allow the rpms to stay high, especially in the max torque rpm zone.

 

Look at your bike brochure.. it will tell you max torque rpm and max bhp horsepower rpm.

 

When the rpms are anywhere near the max torque rpm... any closing of the throttle will have a very strong slowing down of the bike...as though you stepped on the rear brake. This effect is called engine braking. You are using the engine resistance to turning, since throttle is closed, to slow the bike down.

 

At high speeds.. entering a corner on a high gear will cause the bike to 'float' and it will not want to take the corner but rather drift outwards to the outside of the corner.

 

You downshift to keep the engine rpms high to have that trail braking effect into the corner and when you close the throttle it will slow the bike and 'pull' it into the corner.

 

Try taking a corner on 5th gear, then try lower gears but at the same speed... and you will know what I mean. But please find a safe quiet place to try it... I don't want you killing yourself on the roads.

 

haha. kk. ty. sorry. i did not know where to post this, then since is about racing, so i put on the race track. oo, so cornering at lower gear, best is to change to the lower gear which give the max rpm?