Northern Grit Cycle Worx is a mountain bike workshop at 11 Puriri Crescent in Hillcrest, Rotorua. It was founded in 2025 by Mathew, who has more than 20 years in the bike industry and has raced since 2007. The website says he has helped design and develop frame, tyre and wheel products that are still in production. The workshop builds and services bikes, does suspension setup and tuning, and offers bike fitting. It can also build a bike from a box, using parts supplied by the customer or sourced by the workshop.
Services listed include brake and rotor checks, wheel truing, hub service, bushing sizing for forks and custom race tunes. Chain or cassette fitting is $25 each as at 2026, and hub bearing work is $75 for front and rear wheels or $50 each as at 2026. Mid-service subscriptions are $60 a month or $720 a year as at 2026. Customers say the suspension setup suited their riding and that the tuning helped them on race day.