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This bicycle has been designed around the Pinion gearbox & Gates belt-drive for long distance bike-packing MTB adventure riding.
35 backers pledged £8,068 to help bring this project to life.
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Pinion gearbox, belt-drive 29" & 27.5+ bikepacking MTB bike project video thumbnail
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What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

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Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

Are you sick of cleaning and repairing your bike over Autumn Winter and Spring months?  Do you break chains and rear mech's? 

The derailleur drivetrain was invented in 1928 and works perfectly fine for road bikes where precision shifting is not impaired by mud sand and more mud. A lot of design and engineering has gone into improving the rear derailleur, but this system is still exposed to the elements and mud. The derailleur has become the mechanical Achilles heel when long distances and trail conditions turn bad. 

Gearboxes have more long-term benefits for mountain biking than an exposed rear derailleur system. Years of maintenance free cycling. 10000 quite belt-drive miles.  At Olsen Bicycles, I have designed a frame around the Pinion gearbox based on UK hardtail geometry. With the Pinion gearbox and Gates Belt drive, this frame has both low maintenance and ride versatility. 

With low-maintenance at the heart of the design lets break down some of the features: 

  • Elevated chainstays allow the frame design to use continuous runs of uni-directional (UD) carbon from the axles to the headtube. 
  • Elevated chainstays also gives the frame large tyre clearance around the chainstays and chainring. 
  • Symmetrical chainstays keeps the Carbon lay-up the same on both sides for strength and balance. 
  • Adjustable gearbox mounting plates that also tension the belt. 
  • Two different wheel sizes fitting both 29 x 2.4" and 27.5 x 3.0" (plus sized) tyres without affecting the handling. 
  • 27.5+ tyres give you the extra comfort braking control. 
  • 29er tyres give you the speed and roll over anything. This gives you two bikes or more in one and can be built into several bike set-ups ride setup.

We have adopted established mountain bike standards: 

  • 142/12mm maxle dropouts 
  • SHIS 44mm headtube 
  • Internal gear cable and dropper post hose routing. 
  • 180mm Post mount disc brakes. 
  • Both Pinion gearboxes P-line or C-line.

So how do we make a frame more versatile and taylored to you?   This frame uses the benefits of Carbon monocoque construction, However we have designed the frame to allow for some small changes to create a Semi-Customiseable Frame Geometry:  

  • We can change the Reach (top tube) from between 400 - 455mm.
  • Head angle can be anything from 66 to 70 degrees.  
  • Bottom bracket drop can be changed by changing the mounting plates.

Long travel geometry:  

  • With a 66 or 68 degree slack head angle this frame can handle 120mm forks with 29er tyres or 140mm forks with 27.5" tyres. 
  • This makes the riding style aggressive and perfect for jumps, burms and table tops at Trail centres. 

Rigid fork geometry: 

  • With 68 or 70 degree head angle this from feels balanced with 470mm Axle to Crown rigid fork. 
  • This make the bike ideal for bike packing and long distance cycling 

 In addition to this the bottom bracket drop can be changed. 

  • The Belt adjustment is done by using the tensioning fob to rotate the gearbox mounting plates. 
  • These plates can be changed and come in 2 sizes, standard and +5 if you prefer a lower bottom bracket. 
  • This gives you more options to make the frame suit your riding style.

If you have a lot of bikes, this bike will replace several frames in your collection. If you only want one bike then look no further. 

Whether you want a bike to train on or take you on an adventure This bike will not let you down.

Join the #greatbritishweather gearbox revolution where ever you are in the world it is raining somewhere... 

Risks and challenges

I have a lot of manufacturing experience to make this project work. I was the designer at On-One and Planet-X for two years was responsible for designing 4 Carbon frames and getting them into production in China. I have been a product designer and an engineer for over 20 years and want to manufacture something locally in Britain.

I have local suppliers through Sussex that I can meet face to face if we encounter any problems. There may be some production delays with laser cutting and then CNC machining the frame inserts where there are 3 suppliers involved.

It will take approx 8 weeks to get the adjustment plates Laser cut and them CNC and anodised. However I aim to keep everyone informed.

I have a soft epoxy tool and aim to create a master pattern and a series of hard tools. I have been test riding and prototyping for over 6 months so understand the limitations of working with pre-preg carbon fibre.

Pinion Gearboxes have been extensively tested and developed in Germany. The P-Line has an established ride record. The C-Line is new for Q1 2017, however with their experience I do not expect any problems. Pinion have a 5 year warranty and extensive customer service support.

Gates Carbon Drive has over 10 years' experience making belts specifically for bicycles. Gates have an excellent reputation and excellent customer service.

There is nothing in this project that I have not tested or cannot solve.

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Support

  1. Select this reward

    Pledge £5 or more About US$ 7

    SDW Map Water Bottle

    With a map of the South Downs Way, water stops and milage. Made by Euro Bottle the 750ml Big Mouth is a tried and tested favourite with other brands.

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    15 backers
    £

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    Pledge £10 or more About US$ 13

    SDW Map Water Bottle

    With a map of the South Downs Way, water stops and milage. Made by Euro Bottle the 750ml Big Mouth is a tried and tested favourite with other brands.

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    Ships to Only United Kingdom
    5 backers
    £

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  3. Select this reward

    Pledge £25 or more About US$ 32

    OLSEN BRANDED T-SHIRT

    Grey marl T Shirt of your size with Olsen Lamb Logo on the front.

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    Ships to Only European Union
    4 backers
    £

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  4. Select this reward

    Pledge £30 or more About US$ 38

    OLSEN "PUB" T-SHIRT + SDW Map Bottle

    SDW Map Bottle + T-shirt bundle. The Grey marl T Shirt of your size with Olsen any "Pub" Logo on the front. The bottle is the 800ml MAX Sports Bottle with the SDW water points in a handy map.

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    6 backers
    £

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  5. Select this reward

    Pledge £250 or more About US$ 314

    Carbon Fat 142 Maxle Fork (142mm OL.D.)

    Carbon Monocoque Fork is fitted with a 142 MAXLE and 180mm rear post disc mounts. This allows any 142 Maxle rear wheel to be fitted and run on the front. Why? This allows for the front wheel to swapped over to the back and visa versa. This Fork will fit up to a 26x4.0" tyre for the ultimate in passive suspension and grip. With 3 bottle mounts down each side to carry stuff, this is a load worthy fork which will fit any sized tyre 29x2.4" / 27.5+ or 26x4.0"
    Rake = 55mm.
    Axle to Crown = 470mm
    This fork has a tapered steerer and will fit most frames with SHIS 44 or tapered headtube.
    Perfect for Fat bikes, Snow bikes and Jungle bikes.

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  6. Select this reward

    Pledge £250 or more About US$ 314

    Carbon Max Boost+ Fork (110mm O.L.D.)

    Carbon Monocoque Fork is fitted with a 15mm MAXLE with 110m BOOST spacing. With 3 bottle mounts down each side to carry stuff, this is a load worthy fork which will fit any sized tyre. This fork allows for 27.5+ and 29+ Tyres to be fitted.
    Rake = 55mm.
    Axle to Crown = 500mm
    This fork has a tapered steerer and will fit most frames with SHIS 44 or tapered headtube.
    This fork is taller for more upright riding position and can replace a suspension fork for winter duties.

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  7. Select this reward

    Pledge £250 or more About US$ 314

    Carbon Maxle Fork RACE (100mm O.L.D.)

    Carbon Monocoque Fork is fitted with a 15mm MAXLE with 100m spacing. This fork has clean lines for that race build. Yet it is wide enough to allow for 27.5+ and 29+ Tyres to be fitted.
    Rake = 45mm.
    Axle to Crown = 470mm
    This fork has a tapered steerer and will fit most frames with SHIS 44 or tapered headtube.

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  8. Select this reward

    Pledge £1,500 or more About US$ 1,883

    CARBON SINGLE-SPEED FRAME (ONLY) & FORK

    For Singlespeeders this OLSEN PLUS Frameset comes with NO gearbox, but a dummy bottom bracket. This is for Plus-sized belt drive single-speeding. The frame is laquered UD Carbon Black. This comes with a FORK of your choice

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  9. Select this reward

    Pledge £2,450 or more About US$ 3,075

    RAW CARBON FRAME & PINION C-LINE GEARBOX

    This OLSEN Pinion Gearbox Bike Frameset comes with the Pinion C-Line gearbox, CNC Chainset and shifter. The C-Line Gearbox is powder coated and only available in Black. The frame is laquered UD Carbon Black. Supplied with Gates black CDX carbondrive belt and 32T CDX front and rear cogs.

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    2 backers
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  10. Select this reward

    Pledge £2,650 or more About US$ 3,326

    RAW CARBON FRAME + FORK + PINION C-LINE

    FRAME + FORK of CHOICE BUNDLE. This OLSEN Pinion Gearbox Bike Frameset comes with the Pinion C-Line gearbox, CNC Chainset and shifter. This comes with a 15 Maxle, 15 Boost or 142 Maxle fork. The C-Line Gearbox is powder coated and only available in Black. The frame is laquered UD Carbon Black. Supplied with Gates black CDX carbondrive belt and 32T CDX front and rear cogs.

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    Pledge £2,700 or more About US$ 3,389

    RAW CARBON FRAME & PINION P-LINE GEARBOX

    This OLSEN Pinion Gearbox Bike Frameset comes with the Pinion P-Line gearbox, CNC Chainset and shifter.
    The P-Line Gearbox is CNC finished and anodised in the standard Blue, Silver or Black. The frame is laquered UD Carbon Black. Supplied with Gates black CDX carbondrive belt and 32T CDX front and rear cogs.

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    Pledge £3,000 or more About US$ 3,765

    PAINTED FRAME & PINION P-LINE GEARBOX

    This OLSEN Pinion Gearbox Bike Frameset comes TOTALLY BLINGED OUT with matching HOPE headset, seat clamp and Carbondrive belt the Pinion P-Line gearbox, CNC Chainset and shifter.
    The P-Line Gearbox is CNC finished and anodised in a variety of colours. The frame is custom painted to your specification. Supplied with Gates RED CDX carbondrive belt and 32T CDX front and rear cogs.

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Funding period

- (24 days)