Motorcycle Sprockets / Gearing - Explained with Bike It!

Gearing can be confusing at the best of times. Do you go bigger or smaller and what will those changes do to your bike?! We're here to explain all and clear up the great gearing debate once and for all!

Be sure to subscribe and let us know in the comments what gearing you run and why. Like the video, if you found it helpful, for more videos like this and for new products here at Bike It!

[alifeexperiment]

You say not to change too much, so I ordered a rear sprocket that’s 2teeth more, and a front sprocket with 1 less tooth, I was at a stock “15F 43R” now I’ll be at a “14F 45R” for more throttle response along with the stage 1 Dynojet kit I installed on my carbs! This is going to be fun! “It’s on a 97’ Suzuki RF900R”

[MrEyeget]

Changing sprocket sizes is an important modification. Newer (Euro 5) Triumphs will flash an ECU light and error code if you make minor sprocket changes. The OEM gearing is 17T/37T and way too high! 5th gear at 4500 RPM is 154 km/h! The 6th gear at 4500 RPM is 171 km/h!

[vspatmx]

3:41
I suspect it mite have something to do with more easy rideability at super slow speeds in bloody slow moving traffic.

I am new to this and researching it as well
Before I buy my 1st ktm

[onfire]

I am lowering the gearing from oem 16 front, 41 rear to 15 front, 42 rear If I go 1 down on the front and 1 up on the rear is this a better combination rather than going 1 down on the front on a KTM Duke 790

[Rohitnarayankar]

I have a yezdi roadster with stock 13 in front and 45 in rear ( i might have wrong info) want to change it to 12 front and 48 or 52 rear will it increase my mileage as well as will have taller gear soo I have to shift less i trafic and better at highway cruising and will it be better for ladhak ride or Nepal ride.

[mhmpixels]

Does changing sprocket on a motorcycle with a mechanical (I mean not computer reading) speedometer really alters the reading? Or this is only true on motorcycles with ECU?

[maxwatkins]

I’ve just received my new chain and sprockets and can’t wait to lower the gearing (first time) on my dinky Suzuki gsxr125. Top speed isn’t worth a wank (displayed 87mph downhill with wind behind me) so an extra 7.7% acceleration is eagerly awaited. Also at 100mpg+ I can afford lose a little fuel economy.
Looking forward to the continuing wheelie practice and pulling away that little bit faster.
Wish I’d ordered a plated chain sealed chain tho instead of a raw unsealed one. Oh well, always next time. Now to buy an expensive press fit rivet tool, the costs never stop do they?!

[luckylotus]

i upgraded the rare tyre to 1 size higher i.e., stock was 160 now its 170 ... do i need to change the sprocket ?? with additional teeth

[felipethomas]

Sorry I meant, revving the throttle handle

[brianbrooks]

So what is the difference in characteristic changing front vs rear. Does it spin up quicker vs has more bite in the tire?

[felipethomas]

I have a 2022 ninja Kawasaki 400, at low gears, it’s very jerky despite raving smoothly. Would going high on the front sprocket adding more teeth, and removing teeth form the back sprocket help with a smoother ride, since the rpms would be lower ??

[everydayproblemsandthedrud]

You contradicted yourself, if a bigger rear raises gear ratio, which I know it does . You said adding one tooth to the front is the same as adding three teeth to the rear ? it's driving me crazy I've been trying to find a simple explanation all night on the web .