Bike > MTB > XC > Théorème GT 29″> Théorème GT M4

The answers to your questions

Where (and how) to maintain your Origine bike

Origine offers you a wide choice of maintenance and repair options for your bike.

With several options now available, you are free to choose the service that best suits you and your pocket, such as Origine-approved bike mechanics, some of whom will even come to your home, alternatively nothing to stop you using your usual LBS (Local Bike Shop); you can also drop your bike off at our factory and we'll repair it for you (following quote), or why not maintain and fettle your bike yourself using our Origine tutorials.

Further info - Origine's tutos

Warranty

- What are our warranty terms?

At Origine, we believe that an exceptional bike deserves an exceptional warranty.
Therefore, each model comes with a lifetime warranty on the frame and a 2-year warranty on the components.

The warranty is managed directly in our factory by our teams. Your point of contact is an expert who will be able to give you an answer or an explanation, decide to send you a component or plan repairs or other work for your bike.

You can find all the information on this subject on the "Warranties" page.

Further info

We guarantee you a bike that is perfectly adapted to your size

- Not fully satisfied?

You have 14 days following the reception of your order to change your mind and withdraw.
Send us your request by e-mail or registered letter with signed receipt addressed to our head office, providing your contact details and invoice number.

Returned products must be new, complete and in their original packaging.
This guarantee does not apply to specially designed products, i.e., those not found on our website.
Please refer to our General Terms and Conditions of Sale for more details on the terms of this clause.

If having a bike that fits your image is important to many cyclists, it is also vital that the bike also fits you and that you are well positioned on it. Yet many people neglect this point and irrespective if a novice or a seasoned racer the position on the bike is the guarantee of your comfort and your performance.

When finalising the configuration of an Origine bike, there are several options when choosing the position on your bike.

1- You know what you want:
Choose the frame size, stem length, handlebar width, cockpit height, crank length, and a saddle of the appropriate width. We leave the choice to you.

2- Use our Size Calculator
With just a few, easily determined measurements, it defines the exact dimensions of each component for a bike that will fit you perfectly.

How do you take your own measurements at home?
Watch the explanatory video on our YouTube channel to learn how: https://youtu.be/5HdPZWSQWqA?si=6CTwsw0ndrZPvZUS

3- You need some help from our advisors
Validate your order by clicking on "Choose sizes later", one of our technical advisers will call you back within 48 hours.

4- You have a recent bike fit or wish to replicate the settings of your current bike
Select the option "Choose the sizes later" and send us the measurements by email; we will build your bike according to them.

Whatever your choice, one of our technical advisors will systematically call all customers to check measurements before we start production of your bike.

RIGHT SIZE GUARANTEE
All our bikes come with a 1-month CORRECT SIZE GUARANTEE.
If you are not completely satisfied with your position after your initial rides, we will, free of charge, change the bike’s component sizes within one month of delivery of your bike.
See our guarantee conditions here (Link to the Perfect Fit page).

Good to know:
This service is available in all cases, even if you have decided to choose frame and component sizes without using our size calculator.

Further info

Women's bikes

At Origine, our policy has never been, and never will be, to produce scaled-down men's bikes for women.
Our guarantee to produce a bike that is perfectly adapted to your size applies equally to women as it does to men. In choosing from 6 different frame sizes, 8 different stem lengths, 3 different crank lengths, a choice of 2 saddle layback options, and more than 10 different stack heights, we can create the perfect combination that corresponds perfectly to your body shape.
And this is possible across the whole range. At Origine, women have just as many choices as men.

Further info

How do we ship your Origine bike to you?

Origine bikes are shipped fully assembled and adjusted, you just need to fit the front wheel, the bar (MTB only) and adjust the saddle height.

Then you are good to go.

Find all the information and how we ship on the delivery page.

Further info

Shipping costs

Consult the page "Delivery charges" for the delivery charges based on your geographical location.

Further info

How to configure your bike

Fully configure your bike to your image and adapt it to your riding style, expectations, budget and body shape and size.

Firstly, start by choosing the model of bike that interests you and add the components that you want including everything from the make and model of drivetrain, the tyres, the frame colour and the saddle type.

With each component choice the visual, technical data sheet, bike weight and total price are automatically updated.
Let your personality and expectations speak for themselves, you can't go wrong as our configurator will not allow you to select components that are not compatible with each other.

Further info

I want a colour or decor that are not found in the configurator

Colour:
We believe that a bike that reflects you should do so completely and using our Colors On Demand® custom app you can find the colour scheme THAT YOU WANT.

When finalising your order, simply indicate in the "Comments" box a RAL colour chart number or the reference of any car manufacturer's colour scheme.

Good to know:
- We are not equipped to produce chrome or glitter tints, and unfortunately it is not technically possible to create a computer-generated of the bike with a custom colour scheme.

- The boundary between two colour areas cannot be changed as this requires time-consuming adjustments that cannot be made for a single bike.

Decor:
- For technical reasons, it is not possible to select other decors than those found on our configurator. It is not possible to customise the colour, change the position, add or remove them, or mix them with those of other models than the one initially selected.

Further info

Current production lead times

Delivery time for a bike (in weeks) : 4/5
Delivery time for a frameset (in weeks) : 3

If you have chosen a component with a longer delivery time, you will be delivered within one or two weeks from that date.

These lead times are given as an indication only and only come into play once your order, including all the component size choices, has been confirmed and full payment made.
Lead times are subject to production issues and our own suppliers' lead times.
Unfortunately, our technical advisors are unable to reliably inform you of the status of your order prior to the indicated delivery date.

Payment and financing

Use either a bank card or bank transfer to pay for your Origine bike.
If French resident you can also pay by cheque in up to 3 interest-free instalments.

Further info

Fully satisfied or fully reimbursed

Further info

Return to Contents

In doubt, a question?

+ 33 (03) 27 88 10 10

Monday to Friday :

9h-12h30, 14h-18h30

Saturday :

9h-12h30, 14h-16h30

Consult the FAQs

Maintenance, warranties, sizes, colors, delivery, deadlines, ... find the answers to your questions below.

Théorème GT M4

Frame

Origine

Theoreme GT

Suspension

Rock Shox

Sid Select 120mm Remote

Colours and decals

Colour 1

Origine

Silk White

Colour 2

Origine

without, single color

Varnish

Origine

Gloss

Paintwork

Origine

ThéorèMe Soft Grey

Drivetrain

Derailleurs

Sram

X01 Eagle 12s

Brakes

Shimano

XT M8100

Discs

Shimano

MT800 Ice Tech 160 ventilés

Cassette

Sram

X01 Eagle 10-52 12 s

Crankset

Sram

X01 Eagle 32 single Dub

Power meter

Origine

No power meter

Wheelset

Prymahl

Polaris C25 Pro 29''

Wheel deco - stickers

Prymahl

Polaris C25 Pro Soft Grey

Tyres

Continental

Race Cross/King 29x2.20 ProTection

Wheel axles

Origine

Thru Axle levier rotatif 12x148

Cockpit

Saddle

Prologo

Dimension NDR Offroad rail Tirox

Seat post

Kind Shock

Hydraulique Rage-i

Handlebar

Ritchey

MTN 2x Carbon

Stem

Controltech

CLS L2 MTB

Grips

Ritchey

Superlogic

Pedals

Origine

Without pedals

Accessories

Bottle cage 1

Origine

No bottle cage 1

Bottle cage 2

Origine

No bottle cage 2

Water bottle 1

Origine

No bottle 1

Water bottle 2

Origine

No bottle 2

Select your sizes

Customise your bike

Configure and customise your bike.

Our proprietary configurator gives you the possibility to define for yourself the equipment and the deco of your bike, without any additional cost.

It's very simple, each time you change the drivetrain, wheelset and components, as per your liking, the photo, technical data sheet, bike weight and price are automatically updated. Make your dream bike lighter, more comfortable, choose the gearing options that will allow you to conquer any pass, paint it fluorescent green, or fluorescent whatever…

Let your personality and your criteria speak for themselves, you can't go wrong: our configurator will not allow you to associate components that are incompatible with each other and/or the frame. And if you are still unsure, just call us on +33 (0)3 27 88 10 10 to discuss your build with one of our technical or sales advisers.

Customise your bike

Photo gallery

Technological benefits

Theoreme GT

Our ambition was to come up with the design of such a formidable machine that top performance at every level would be possible.
Two and a half years of painstaking research were necessary. Two and a half years of trials, of failures and complete blank outs. Re-thought, re-designed and re-worked hundreds of times.
Pushing our know-how and technology even further and challenging ourselves to be bold, even bolder.
Why? Because we wanted an extremely responsive MTB frame, but also a comfortable frame. That is as much a player as it is reliable.
Challenge assumed!
Thanks to the Dynamic Response concept, what we have achieved is not a bike, more a partner in crime!
Like an archer's bow that instantaneously returns to its original shape upon the release of the arrow.

Dynamic Response

The Dynamic Response® concept reflects Origine's character: the perpetual search for excellence in performance, while retaining a certain comfort. The weave and layering of the carbon fibre was specifically studied to opt for a responsive frame rather than a stiff frame to enable an extremely fast return following deformation.

Our engineers developed the Dynamic Response® concept. Rather than preventing the frame from deforming at various stress points (bottom bracket and the head tube when cornering) so as not to lose power transfer, the Théorème works more like a spring, an archer's bow for an extremely fast return following deformation. As a result it's more responsive, more predictable, even in series of fast, tight bends. It is also easier to steer and more comfortable on long rides, during those moments of tiredness or in winding, technical areas.

New XRD® technology

We have also developed XRD®, a wholly new system of fixing the derailleur hangar so that it remains in the rear wheel's axis. The result is improved shifting accuracy and the wheel's stiffness in the frame is increased by 17%.

We have based our XRD® technology on Shimano's new standard thru-axle

EPS moulding technology

The EPS internal polyurethane frame moulds prevent the build-up of resin in the angles but smooth out the frame tubes’ internal surfaces.
Consequently, the frame is not weighed down by excess unnecessary resin.
Smoothing out the internal surfaces results in a consistent tube thickness, as a result the frame can better filter out ground buzz and vibration.

Toray® T800 and M40 M50 carbon fibre weave

The Japanese firm Toray® is the world's largest manufacturer of carbon fibre, its fibre is used in several fields such as car racing and the aeronautical industry. Toray fibre is used, for example, in the manufacture of the Boeing 787.

The frame is now moulded using unidirectional high modulus T800 fibre. A mix of 3K M40 and M50 fibres is used in the areas subject to strong torsional strain to as to obtain optimal performance while maintaining a certain level of comfort.

Hand-painted in our factory

All Origine frames are painted in our assembly plant in the north of France.

We have conscientiously chosen to exclusively use car industry quality water soluble paints.
Their resistance to scratches, impacts and abrasion is far superior to those frames painted in Asia and the impact on the environment is considerably less.

Tech specs

Tapered headset: IS42/28.6 - IS52/40
Bottom bracket: PF92
Seat post: 30.9
Max tyre width: 29x2.30"
Frame material: High modulus carbon
Brakes max: Post Mount disc brakes 160 rear (180)
Thru-axles (rear): 12x148 mm Boost
Chainrings(max): 36
Number of bottle cages: 2
Front fork travel: 100 or 120mm

Geometries

		S		M		L		XL
ST	Seat Tube length	400		440		480		520
TT	Horizontal length	570		595		620		648
HT	Head tube length	90		100		115		130
HR	Fork steerer standard length	170		180		195		210
HR	Fork steerer length range	From 140 to 180		From 150 to 190		From 165 to 205		From 180 to 220
SA	Seat tube angle	73		73		72.5		72.5
AH	head tube angle	69		69		69		69
CS	Chain stays length	430		430		430		430
SK	Stack	602		612		626		640
RE	Reach	402		424		439		463
BB	BB Drop	63		63		63		63
LE	Wheels base	1084		1110		1130		1159
RF	Fork rake	44		44		44		44
Stem CLS L2 MTB
Cyclist size		From 153 to 163	From 164 to 168	From 169 to 172	From 173 to 177	From 178 to 182	From 183 to 187	From 188 to 194	From 195 to 200
Stem Length		60	70	70	80	80	90	90	100
Crank length		170	170	170	175	175	175	175	175

Avis non disponible

Théorème GT - Shimano XT - Fulcrum Red zone 500

Peut-être le premier origine à faire et finir la tour divide aux US

Thèorème GTR - SRAM XX1 Eagle AXS - Polaris C25 pro

VTT semi rigide GTR full carbon. Après 3 mois de sortie Super vélo ,sensation XXL, dérailleur SRAM XX1 Eagle AXS , roues Polaris C25 pro. Suite à un petit souci lors d'une sortie appel au SAV réactivité max . Je recommande. Denis

Théorème GT - Shimano XT - Prymahl Polaris A25 Pro

30 ans de VTT derrière moi, retour sur un semi-rigide... Des décathlons, un Zesty, un fuel EX et maintenant un Théorème GT. Mon premier carbone monoplateau. Un vrai jouet, très réactif, vif, léger, grisant ! Fourche de 120mm, tige de selle télescopique, ça passe vraiment partout et ça va vite ! Évidement ça bute sur du terrain dur et défoncé. Le manque d'un amortisseur centrale se fait sentir. Mais à plus de 50 ans, j'ai (re) trouvé une machine à sensation.

Théorème GTR - Sram 12v lunar - Prymahl Polaris A30 R

Le vtt est très agréable dans les descentes. Très réactif dans les relances. Equipé en Sram XX1 pour la transmission et avec des freins SHIMANO XTR, le vtt a un bon équipement technique. La possibilité de choisir soi-même ses composants est vraiment un plus : vtt à la carte. Je conseille fortement Origine.

Théoreme GT - Shimano SLX - Roues DT Swiss X 1900 Spline

Merci pour la tenue des délais et surtout de la qualité du vélo ! Arrivé samedi, première sortie dimanche, un vrai bonheur.

Théoreme GT - Shimano SLX - Roues Fulcrum Red Zone 500

Bonjour, mon théorème gt est bien arrivé en Bretagne et il répond déjà à toute mes attente. Merci à toutes l'équipe pour les conseils, le suivi et votre savoir-faire. Bonne continuation et merci encore 😉

Théorème GT 29" - Fourche Rock Shox Sid Select 100mm - Shimano XT M8100 - Roues DT Swiss XR 1700 Spline

Bonjour, Après que mon cadre carbone Merida 26’´ ait rendu l’âme, me voici en possession d’un magnifique Théorème GT rouge flamme, full XT, roues DT 1700: aucun regret! Le 29’´ est une révélation et le vélo est à la fois très confortable et malgré tout joueur, plus que je ne l’imaginais. Je n’ai eu aucun problème avec le service d’Origine , que ce soit en amont de la commande où mes questions ont toutes trouvées réponses et par la suite avec un délai respecté et une livraison sans encombre.

Théorème GT - Shimano SLX - Roues Shimano XT

VTT très facile à piloter, maniable et très agréable. Confort relativement bon pour un semi-rigide, malgré le carbone. Très satisfait de mon choix ; dispo conforme aux prévisions. Très content de mes choix et aucun regret sur la couleur (Orange Shakir). Réception du VTT à l'usine directement ; réglage précis sur place. Vraiment top comme expérience je recommande.

Théorème GT - Shimano XT - Roues Prymahl Polaris C25 Pro

Passé les 500 km et toujours très satisfait de mon théorème GT avec jantes Prymahl. J'ai quitté mon ancienne monture carbone 2x10 pour ce vtt. Pas déçu de l'accueil, du conseil et du suivi de Origine. Montage fourche Rock shox Sid 100mm, transmission shimano XT, pédalier slx et freins Shimano Slx.

Théorème GTR 29

Bonjour je suis très satisfait de mon Gtr ,léger, nerveux et beau que demander de plus.

Théorème GTR 29

J'ai acheté mon vtt en début d'année j'ai déjà fait 1000 km et 20 000 mètres de dénivelé exclusivement en chemin forestier et single, un vrai bonheur, j'ai eu vite fait d'oublier mon Specialized Epic carbon tout suspendu !!! vraiment une bête de course et également très confortable pour un semi rigide. Très heureux de mon achat je le recommande sans retenue merci à Origine !!!

Axxome II GTR - Théorème GT

Fier de mes « Origine » Un an après un Axxome GTR, je viens de faire l’acquisition d’un Théorème GT. C’est dire combien je suis satisfait. Et l’accueil à l’usine toujours très agréable et riche en conseils. Bravo à toute l’équipe.

Théorème GT 29

Reçu à la mi-décembre, mon Théorème GT a parcouru un peu plus de 200 km. J'apprécie sa légèreté (9,8 kg), son agilité et son confort, la fourche Sid Select 120mm Remote est vraiment magique ! Je continue à le découvrir dans les côtes et sur le plat en forêt. Très roulant, il est aussi à l'aise sur les chemins qu'en ville. A chacun de l'équiper à son usage avec les bons pneux et les bons composants mécaniques. Personnellement j'aime bien aussi l'utiliser pour aller faire les courses en ville car il est très maniable

Théorème GT 29

Après presque 25 ans avec un Vtt Merlin, je me suis décidé à acheter un nouveau vélo... C'est un théorème GT, monté XT et fourche Fox 32 Je n ai pas encore beaucoup roulé avec (j'attends le dégel), mais je ne suis pas déçu ! Les plus : le configurateur la communication la rapidité de la livraison (3 semaines) la qualité du cadre , du montage et du comportement du vélo . le confort Les moins : je cherche encore

Théorème GTR 29

Après une commande sur le configurateur origine, 2 ou 3 appels téléphoniques de votre part pour valider les mensurations, j’ai reçu mon vtt théorème GTR. Une pure merveille. Merci à toute l’équipe origine pour votre professionnalisme. Cela fait plaisir de voir que le savoir faire français existe toujours.