Northern Ireland team Mar-Train Racing and Dean Harrison have parted company after an association of two seasons.
Bradford rider Harrison will pursue an alternative option for 2016 after being released from his contract by team owner Tim Martin.
The 26-year-old had been due to ride for Yamaha UK’s official road racing team again in 2016 but will take up a new challenge.
Harrison and Mar-Train spent 2015 developing the all-new YZF-R1M and despite some setbacks gave the machine its first ever road race victory at Scarborough, set the fastest ever Yamaha lap at the Isle of Man TT and lifted the Cock ’O The North and Gold Cup titles.
Team principal Martin said: “Dean has been instrumental in getting the new R1M to where it is now and has been a pleasure to work with over the past two years. He is a talented young rider and needs to follow his own aspirations, I wish him all the best and would have no hesitation in working with him again in the future.
“Hopefully we will be in a position to confirm our 2016 plans in the next week but our commitment to Yamaha UK and the YZF-R1M project remains intact, we made a lot of progress throughout 2015 and are looking forward to reaping the benefits with a successful 2016.”
Harrison rode the team’s Yamaha R6 in 2014 before joining the Lisburn-based concern full-time this year.