Kelvin's Cycles Nelson is a bike shop at 109 Rutherford St in Enner Glynn, Nelson, with a Google rating of 4.4.
A good bike shop starts by asking how and where you ride, then fits the bike to you, not the other way round. Sizing matters more than the badge: a properly sized frame, with the saddle and bars set up for your body, is more comfortable and safer than a fancier bike that does not fit. Say whether you will ride mostly on road, gravel or trails, since each suits a different bike. Ask about servicing and warranty, and whether the shop will adjust things after the first few rides, once the cables have bedded in. A good shop will also handle repairs, from punctures to brake and gear tune-ups. Regulars book a service before the busy season, keep their receipts, and look after the shop that looks after their bike.
For riders around Nelson, Kelvin's Cycles on Rutherford St is a local place to look.