Fern Ski-Bikes is a manufacturer at 9 Woodstock Place in Russley, Christchurch, with a Google rating of 5.0. Its website is fernskibikes.co.nz, which lists ski-bike accessories and parts, including skis.
A ski-bike is a bike-style frame that rides on skis instead of wheels, and a good manufacturer builds them sturdy, well balanced and easy to repair. When choosing one, ask about frame size and rider height, how the frame is built and what materials are used, and whether replacement parts such as skis are available if something wears or breaks. Ask how to fit and adjust the bike, what other gear you need, and what to know about safety and riding on groomed snow. Many ski areas have their own rules about where ski-bikes are allowed, so check with the field before you go. Regulars look after their gear by drying it after use and checking bolts and skis regularly.
For snow sport fans in Russley and around Christchurch, Fern Ski-Bikes on Woodstock Place is a local manufacturer to ask about ski-bikes and parts.