moddedfireblade1022
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- Joined
- Jul 28, 2025
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- 4
Just slapped a fresh exhaust and ECU on my 2021 CBR 1000RR, but I'm stuck at 145 mph. The bike feels solid, and there are no error codes. Anyone else run into this after tuning?
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2021 CBR 1000RR won’t exceed 145 mph
- Thread starter moddedfireblade1022
- Start date
The_sentry
Member
- Joined
- Jul 5, 2025
- Messages
- 7
Did your ECU tune include speed limiter removal, or was it just adjusted for fuel and exhaust? Some tunes leave the factory limiter in place unless specifically requested
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