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Question:

What are the advantages of the different Motorcycle Tire size listed for Sportbikes?

Front120/70/17 – Rear 200/50/17 What will it do?Front120/70/17 – Rear 190/50/17 What will it do?Front120/70/17 – Rear 180/50/17 What will it do?I have a 1000cc Sportbike and I will soon ride it on the track. What would be the best tire size and why? I like this size Front120/70/17 – Rear 200/50/17 for the street. Is that size tire limiting the bikes performance?

Answer:

Front120/70/17 – Rear 200/50/17 Greater amount of torque to be applied in straight line acceleration as compared to the other 3, however least amount of cornering capabilty due to side wall size Front120/70/17 – Rear 190/50/17 Average amount of torque can be applied without tire spin, however for inexperienced riders you may not be able to get the bike all the way over in corners with out excergerated intiatiation, but it is the tire of choice for racing and the liter bike class due to the amount of horsepower and torque applied to the wheel Front120/70/17 – Rear 180/50/17 Usually stock on your 750 and 600 class, however gives greatest amount of handling especailly in high speed turn to turn type courses, not preferred on liter bike do to the fact of their is to much horsepower and torque and you would either be spinning the tire excessievly. Which would lead to premature tire wear and loss of speed do to lack of traction. If I was you i would go with the 190 and practice with that as you get the grip and the performance with out giving up to much handling. Either way you'll never be able to roll on the throttle to hard with a 750, or 1000 class in the corner with out braking the tire free. Essential your foot print is about the size of a hockey puck. A Rear 200/50/17 is a complete loss of corner and would greatly decrease the bike handling, unless your ridning in a stragiht line, but sport bikes perform there best in the corners that's what makes a great rider from and average rider how close can you get to the edge of the tire shows your level of skill. hope this helps.
If you have a 6 inch rim run the 190, or the 180 the 200 is too big for the rim and gives the tire a bad profile plus more unsprung weight. I like to run the 190 on my R1, but sometimes will run a 180. The handling can be a bit quicker with the 180, but with some geometry adjustment I can make the 190 just as quick if I want.
Front120/70/17 – Rear 200/50/17 Greater amount of torque to be applied in straight line acceleration as compared to the other 3, however least amount of cornering capabilty due to side wall size Front120/70/17 – Rear 190/50/17 Average amount of torque can be applied without tire spin, however for inexperienced riders you may not be able to get the bike all the way over in corners with out excergerated intiatiation, but it is the tire of choice for racing and the liter bike class due to the amount of horsepower and torque applied to the wheel Front120/70/17 – Rear 180/50/17 Usually stock on your 750 and 600 class, however gives greatest amount of handling especailly in high speed turn to turn type courses, not preferred on liter bike do to the fact of their is to much horsepower and torque and you would either be spinning the tire excessievly. Which would lead to premature tire wear and loss of speed do to lack of traction. If I was you i would go with the 190 and practice with that as you get the grip and the performance with out giving up to much handling. Either way you'll never be able to roll on the throttle to hard with a 750, or 1000 class in the corner with out braking the tire free. Essential your foot print is about the size of a hockey puck. A Rear 200/50/17 is a complete loss of corner and would greatly decrease the bike handling, unless your ridning in a stragiht line, but sport bikes perform there best in the corners that's what makes a great rider from and average rider how close can you get to the edge of the tire shows your level of skill. hope this helps.
If you have a 6 inch rim run the 190, or the 180 the 200 is too big for the rim and gives the tire a bad profile plus more unsprung weight. I like to run the 190 on my R1, but sometimes will run a 180. The handling can be a bit quicker with the 180, but with some geometry adjustment I can make the 190 just as quick if I want.

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