CBR900RR 1999 gas ?
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I'm sure the compression ratio for the 900rr's calls for 91+ as it does for the 600's. It's not just a matter of which gas seems "better" but what's correct for the application.
87,89, 91-94 octanes all have a different burn rate and work differently in the motor. Unless you have an adjustable timing rotor, don't go with lower octane than is recommended for the bike.
91+ premium/supreme is not only the best, but it's right
87,89, 91-94 octanes all have a different burn rate and work differently in the motor. Unless you have an adjustable timing rotor, don't go with lower octane than is recommended for the bike.
91+ premium/supreme is not only the best, but it's right
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