P 1135 traction control disabled
how to repair Traction control disabled due to malfunction (P1135) triumph bonneville T120
P1135 - Traction Control prevented due to ABS problem. This is what it relates to on a Triumph motorcycle.
I would suggest you take a look at your ABS sensors, and or ABS/TCS fuses.
Could be that your sensors are either faulty or just dirty.