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Discover the new Theoreme FS

Discover the new Theoreme FS

Pushing further back the limits of the hardtail bike Available in 100 or 120mm

Théorème HT

Starting with a model whose performance was already outstanding, the challenge for us was to do even better. The MTB scene is changing fast, and just improving a bike’s performance is no longer enough. We are constantly adapting to this dynamic and taking advantage of it to integrate all the new technologies into our hardtail.

So, let’s now discover the new Théorème hardtail, a concentrated powerhouse that highlights speed and performance. And as is always the case at Origine, these features are not at odds with comfort and accessibility - quite the contrary.
Discover the new Theoreme FS
The internal routing

The internal routing

Our new standard

Say goodbye to brake hoses banging against each other as you ride across a scree slope, say goodbye to a branch catching the bike and rider by the derailleur cable. Where some people might see this as an aesthetic advantage, we see integration as the solution to increase reliability and longevity of cables and hoses, all well protected inside the frame.

As full integration would have come at the cost of adding more weight, we decided not to guide the hoses through the front triangle. Every cable and hose is sealed inside an ultra-light neoprene sleeve that cuts out all rolling noise.

But we didn’t stop there. We took advantage of this new platform to integrate the saddle clamp. This has added more strength to the frame by reinforcing the top tube/seat tube junction, without adding any extra weight.

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Steering lock

A new kind of headset

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CUSTOM BUILD

GTR / GTO

TWO STANDOUT CARBON FIBRE LAYUPS

Each in its own field, the GTO and GTR layups excel in different ways,

- The GTO delivers the perfect mix of comfort, damping and performance. The result is an ultra-versatile mountain bike, from club runs to marathon XC and ultradistance. Whatever the discipline, the GTO’s carbon layup will limit rider fatigue and let you push through harder.
-The GTR, on the other hand, is uncompromising on performance. Light, responsive, everything you'd expect from a racing bike. But it wouldn’t be an Origine if we hadn't pulled out all the stops to maintain a certain tolerance. It remains a top-performance MTB that is accessible to everyone, but one that will inspire you to give your all in every situation.

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Compatibility with modern standards

UDH (Universal Derailleur Hanger)

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CUSTOM BUILD

CUSTOM BUILD

Custom.

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Geometry

Géométrie
S M L XL
ST Seat Tube length 395 435 475 525
TT Horizontal length 580 605 630 655
HT Head tube length 90 100 115 130
SA Seat tube angle 74.3 74.3 74.2 74.2
AH head tube angle 68.5
CS Chain stays length 430
BB BB Drop 60
FL Fork Length 506
SK Stack 598 608 622 636
RE Reach 412 434 454 475
LE Wheels base 1097 1123 1148 1175

Technical information

Technical specifications

Théorème GTR frame weight 860g
Théorème GTO frame weight 950g
Fork 100mm – 120mm
Fork offset 44mm
Bottom bracket PressFit 92mm
Headset Integrated IS52/52 with steering lock
Seatpost 30.9mm
Collier de selle Full integration
Brake caliper mount PM 160mm
Disc brakes 160mm or 180 mm
Max. chainring size 36T
Max. tire size 2.4"
Water-bottle holder 2

Select your Theoreme HT

Theoreme GTR

Performance & low weight
Théorème HT 100 GTR

Théorème GTO

Performance & tolerance
Théorème HT 120 GTR