welcome to

olsen bikes

In 2013 I started Olsen Bicycles so that I could get Gates Carbondrive Belts for a prototype. With time this has evolved into the range of OLSEN Bicycles that you see today. OLSEN Bikes have been developed for off-road adventures anywhere in the world, but with geometry that you can also ride easily.

who is olsen bikes

My name is Steven Olsen. I worked with other cycling brands like On-One Bikes and Cooper Bikes, before starting my own brand OLSEN BIKES. I have always loved mountain biking and discovered single-speed MTBing after a crash in the middle of the Karapoti Classic 50km MTB race. Many years later, after a year of Off-road commuting for 30 miles (2+hours) per day, I started to design bikes for long distance.

Olsen Bikes offer bikes suitable for everything from Singletrack Trail riding to Bikepacking adventures and beyond. Whether you are Mountain Biking, Gravel Racing or want to Cyclocross, Olsen have a bike for you. The RocknRollout Dropouts tensioners run singlespeed, beltdrive, derailleur, Rohloff Speedhub, Kindernay XIV internal Hub.

the latest Blog posts

There is a rumour at Tweedlove Enduro

There is a rumour at Tweedlove Enduro

There is a rumour at Tweedlove Enduro of a 50+ year old riding a Titanium Singlespeed Hardtail...  It ALL true.  In the exhilarating world of mountain biking, where cutting-edge technology and full...
Wait… Weight? How to build the lightest Pinion Gearbox Bicycle.

Wait… Weight? How to build the lightest Pinion Gearbox Bicycle.

I have been asked several times about reducing weight on our Pinion Bikes.Our “standard” Titanium bike builds with our components comes in at 12.2Kg without pedals. Before we go chasing weight — it...
Why we have renamed our Bikes after South Downs Way Pubs.

Why we have renamed our Bikes after South Downs Way Pubs.

When I started Olsen Bicycles, I was faced with choosing the name for the company. Olsen is obviously a scandinavian surname name passed down from my ancestors. Despite being a New Zealander by bir...


The RocknRollout Dropout is at the heart of the OLSEN frame design. We have focused our design around the rear derailleur dropout, but taken it further. Most bicycle frames have replaceable dropouts, but they do not allow for anything other than a derailleur. This idea came from the fact that UK riders often have a winter bike, which is often single-speed.
The RocknRollout Dropouts turn 1 Bike into 2 Bikes giving the rider more versatility. Summer bike with derailleur; winter bike as single-speed or internal gear hub.

Long Distance Riding ...

OLSEN Bikes started as a brand when I started riding and training along the SOUTH DOWNS WAY. There are charity rides every summer to complete the 100mile route. So what is the ideal bike and how do you prepare?

It is has over 10 chalky climbs over the 100 miles. It is a challenge to do it in 1 day. I have completed it several times including a sub 10 hour ride on Belt-drive and SINGLE SPEED.

Here are some tips and tricks to enjoy, compete or complete.

gates belt drive

At OLSEN HQ I put a lot of emphasis on designing the RocknRollout Dropout to work with GATES Carbondrive BELTS. I have developed this on and off over 5years getting the micro tension just right...

Gates Carbondrive brings you Olsen Bikes that are:
CLEAN - Just hose off and ride.
QUIET - The antidote to a high-tech world.
LOW MAINTENANCE - Fit and forget for 10,000 miles.


I have been a Product Designer for 25+years. I ended up working for companies wanting to transfer their production to Asia. Working with a supplier is a relationship. They want to make product to keep their factory busy so they can pay their workers fairly. We have selected one of the best Titanium factories in China. They are close to the Titanium Mills and can hydroform the tubes, CNC solid Titanium inhouse and have skilled welders. Their staff are cyclists so they have a indoor BMX track for their staff to test bikes.