Autumn Sale on now

See our bike specials

Welcome to Chain Reaction.

Since Chain Reaction first opened in 2000, we have helped thousands of cyclists achieve their cycling needs and dreams. We support the biking community through events, trail building, rides, seminars and athlete support. Our friendly, helpful staff all ride, from the commuter, the road rider, trail, downhill and BMX. We all have one thing in common, we love bikes and want to help you enjoy them as much as possible.

Call in and meet us, get some advice and maybe take a bike for a spin. We have exceptional gear to offer and want to help you get the most out of your bike.

We are a group of passionate cyclists and skilled individuals. Professional, energetic and engaged in the community, we're happy to share our bike passion with the people of Canterbury. Independently owned, we've been selling and servicing bikes and gear since 2000.

4/218 Moorhouse Ave, Christchurch, NZ
03 943 4925

Get directions


Mon-Fri 8:30-5:30
Sat 9-5
Sun 10-4



We're on the YouTubes.


SouthernCross CX

The first round of the 2019 SouthernCross CX cyclocross series is done and it was a good one.

Watch on YouTube


Rude Rock Shoeless

How about a lap down Rude Rock on Coronet Peak with no shoes on!

Watch on YouTube


Rotorua Riding

Will Keay headed up to Crankworx to race the Giant Toa Enduro and check out what Rotorua has to offer.

Watch on YouTube


Subscribe for awesome cyclocross videos.


Connect with us.



SouthernCross CX 2019 Round 1 Highlights

The first round of SouthernCross CX is done and it was a good one.

Read on


Meet the All-New Roubaix

Lighter than Venge. More aero than Tarmac. Engineered to go fast, the all-new Roubaix is the most technically advanced machine Specialized has ever made.

Read on


Try a Specialized MTB Tyre

As riders, we tend to stick to a tyre we know. When you ride the same tread pattern for years, they become very predictable and it's hard to want to try something different "if it ain't broke."

Read on


Autumn Sale



Comfort, Performance and Efficiency

Body Geometry Fit offers benefits to all rider types, mountain or road. It's a comprehensive process that creates the perfect union between bike and body. Our trained Body Geometry Fit technicians can have you on your way to a pleasant, healthy riding experience.

Learn more about Body Geometry Fit



Let's stay in touch.