Ozmosis Training is a premier mountain biking coaching and guiding company from North Vancouver. The owner Jaclyn Delacroix has been a resident of the Sea to Sky Corridor for the past decade and is always keen to share her passion for all things mountain bike .
TRAINER PROFILE: JACLYN DELACROIX
Jaclyn was born and bred in the Australian outback and moved to Vancouver in December of 2007. Shortly after moving here, she discovered the North Shore and mountain biking and it has been her passion ever since.
Jaclyn’s original training was in Accounting but she went back to school in early 2007 after some major life changes, and did her personal training certification through the Australian Institute of Fitness and with that background behind her, and with her passion for mountain biking and seeing other people achieve their goals, it was only a matter of time before she became a mountain bike coach as well.
Jaclyn has been involved with the North Shore based women's mountain biking club The Muddbunnies since 2008 and is actively involved in promoting women withing the mountain biking community. She is also involved with the North Shore Mountain Bike Association (NSMBA) is their current Director of Youth and a long term Trail Builder.
Jaclyn’s original training was in Accounting but she went back to school in early 2007 after some major life changes, and did her personal training certification through the Australian Institute of Fitness and with that background behind her, and with her passion for mountain biking and seeing other people achieve their goals, it was only a matter of time before she became a mountain bike coach as well.
Jaclyn has been involved with the North Shore based women's mountain biking club The Muddbunnies since 2008 and is actively involved in promoting women withing the mountain biking community. She is also involved with the North Shore Mountain Bike Association (NSMBA) is their current Director of Youth and a long term Trail Builder.
TRAINER PROFILE: SIERRA SULLIVAN
Sierra was born and raised around the forests of western Canada where she developed a love for trails, mountains, streams, and rivers. Moving to Vancouver in 2017 to pursue a PhD in fisheries was motivated by the excellent educational and, of course, the mountain bike opportunities that the area offered.
With a background as an alpine ski coach and a dance instructor, expanding her coaching skills to mountain biking was a natural progression after taking up the sport. She has instructed and guided for WORCA, Shred Sisters, and many other organizations across BC as a PMBIA Level 1 certified coach since 2016. In addition to coaching, she races enduro, builds trails, and explores backcountry regions across western Canada and the US.
Sierra’s passion lies in promoting female involvement in mountain sports through structured approaches to skill development and mental progression. She mentors for the Mountain Mentors ski touring program, guides for Muddbunnies Cycling Club, and is excited to share her enthusiasm for teaching and bad puns with Ozmosis Training clients.
With a background as an alpine ski coach and a dance instructor, expanding her coaching skills to mountain biking was a natural progression after taking up the sport. She has instructed and guided for WORCA, Shred Sisters, and many other organizations across BC as a PMBIA Level 1 certified coach since 2016. In addition to coaching, she races enduro, builds trails, and explores backcountry regions across western Canada and the US.
Sierra’s passion lies in promoting female involvement in mountain sports through structured approaches to skill development and mental progression. She mentors for the Mountain Mentors ski touring program, guides for Muddbunnies Cycling Club, and is excited to share her enthusiasm for teaching and bad puns with Ozmosis Training clients.
TRAINER PROFILE: DUNCAN JONES

Certified Mountain Bike Coach
Duncan is another import to Canada. Originally from Glasgow, Scotland, he moved to Vancouver in 2014 to push the boundaries of his riding and explore BC.
Duncan first got on a mountain bike over 10 years ago, and has been riding ever since. He has competed in many different cycling disciplines, including downhill, enduro, and BMX. Duncan has also been working in the bike industry since the age of 13, and has an intimate knowledge of bike and suspension set-up. He is a PMBI level 1 certified coach.
Duncan is keen to share his knowledge, experience and passion for biking with others, and to help them develop their skills and achieve their goals.
Duncan is another import to Canada. Originally from Glasgow, Scotland, he moved to Vancouver in 2014 to push the boundaries of his riding and explore BC.
Duncan first got on a mountain bike over 10 years ago, and has been riding ever since. He has competed in many different cycling disciplines, including downhill, enduro, and BMX. Duncan has also been working in the bike industry since the age of 13, and has an intimate knowledge of bike and suspension set-up. He is a PMBI level 1 certified coach.
Duncan is keen to share his knowledge, experience and passion for biking with others, and to help them develop their skills and achieve their goals.