Tyre profiles and traction control
There have been previous threads about whether going from a 50 profile tyre to a 55 adversely affects traction control operation. Reading through them, the comments seemed to be inconclusive. I've used 55 profile tyres since early 2016 and have been perfectly happy with both grip and rate of turn-in. In rain mode, I've never seen the TC light come on, whereas it was always flickering on and off with the OEM 50 profile, even in dry conditions. I recently had a big slide whilst in rain mode on a greasy bit of road and looking for the TC light was the last thing on my mind 😁. However, it prompted me to write to Suzuki NZ to get their take on changing tyre profiles. This is their reply:
Thank you for your email.
Please understand that by changing the rear tyre from the standard OEM tyre this may effect the way the motorcycle handles and operates.
Thank you for your feedback on how the bike has performed to date on the 55 profile tyre. Unfortunately, we cannot confirm that the traction control may be affected by this.
However, the system is a self-checking unit and any issue will generate a warning light to stay on. If you continue to use the 55 profile tyre, please ride with caution, particularly in wet conditions.
Thank you again for your enquiry and feedback and we hope this information has been helpful.
Predictably, the response was a company "safe"one but I noted his comment about the self-checking property of the TC. I certainly don't get a system warning light. I wouldn't have thought that the profile would adversely affect TC - what if a slow puncture and the decreased radius caused it to malfunction? Hardly failsafe.