• 4.29

    Multifunctional adventure bike

The 4.29 mountain bike has become a standard ever since the 29er made its appearance in the mountain bike world.

We have made the 4.29 very robust. Especially the versions with Rohloff or Pinion with beltdrive are super strong and durable. With this setup you can easily dredge the mud or bite dust all year round, without having to renew your drive system. No matter how filthy the circumstances are, the 4.29 keep running.. always! And if you decide to mount the hufter-proof hydraulic Magura Firmtech rim brakes, you'll have the most low-maintenance mountain bike you can find.

The 4.29 is the only 29er mountain bike in the world that is assembled with these brakes. For the fast guys and girls who like to descend a lot and mainly fast, the 4.29 is also available with disc brakes.

With its bite and dosability of discs combined with the low-maintenance character of the Rohloff hub or Pinion gear box, the 4.29 is a real long distance ride, a marathon bike.

The construction and its endless custombuilt options of the 4.29 make it a very suitable trekking bike too. With a rear carrier, our 'Hold-it-All' and the possibility to opt for a fixed steel front fork, you can convert this bike into a tough 'Adventure Bike'.

Enjoy mountain biking in the winter and take it on a summer adventure on your cycling holiday, potentially with fast tarmac tires. Or.. mount wide beach tires (2.35 / 60mm tires will easily fit) and hit the beach with your 4.29 Beach Racer.

One bike, fits all!

"Multifunctional adventure bike"

Adventure bike

Bikepacking & more

Bikepacking ready
Rear carrier and lowrider possible

Minimalistic adventure

Bikepacking ready

The 4.29 is light and super clean. You'll easily take it with you on your next bikepacking adventure. An exciting trip crossing unpaved tracks and when the night falls, you'll find yourself a great spot to camp. The 4.29 is your ideal companion for your next micro-adventure; minimalistic and very little maintenance. This way you can fully enjoy your surroundings and concentrate on those rocky paths, over which you easily maneuver the 4.29.


Lots of luggage

A trekking bike too

You can pack up the 4.29. It is your sporty travel bike with an adventurous touch.

The steel front fork is suitable for a lowrider and you can opt for the TravelRack XL, a special heavy duty carrier for 29ers. In short: take whatever you want.


From beach racer to marathon bike


Configure it as a low-maintenance mountain bike, marathon bike, beach racer or adventure bike. When you opt for beltdrive, you can easily build it up with carriers and mudguards. With a steel front fork and our Hold-it-All, it becomes a true traveller.

Comfortable and strong

Santos travel wheels

Of course, the 4.29 is assembled with our extra strong travel wheels. They are handbuild with the best rims on the market. Our hubs have 36 spoke holes and spoke nipples are secured.

Tires up to 60mm fit in the 4.29 and even with mudguards this will give you plenty of clearance.

Fixed front fork or suspension fork

Suitable for heavy duty use

The 4.29 has a raised forkhead, which can fit both a fixed and a suspension fork.

We have developed the fixed front fork ourselves. This stable, steel 29er fork is equipped with lowrider inserts, is suitable for heavy-duty use and has useful details. For example you can mount SON SL, your lamp is always fixed straight and it neatly guides the cables in front of your frame.

It's available in four versions; for rim brakes, disc brakes, FIRMtech and the combination rim brake / disc.

Powerful hydraulic brakes

With fixed dropouts

The 4.29 is compatible with two hydraulic brake systems.
Choose the powerful disc brakes or the reliable Magura rim brakes. Choose what suits you best.

hydraulic disc brakes
hydraulic rim brakes

Powerful hydraulic disc brakes

A lot of braking power

The strongest brakes with the most powerful braking power. Ready for long downhills. Choose Shimano XT disc brakes with long handles; very comfortable. Depending on your goal, we offer different types of discs. For XT we offer 180 and 203 mm discs, for Hope we have the Tech3 V4 model of 203 mm. Choose what suits you best.


Reliable hydraulic rim brakes

Evenly distributed braking power

The 4.29 comes with hydraulic FIRMtech brakes from Magura. These are robust, durable and as the name suggests, 'firm' or powerful. They brake firmly and directly and are easy to dose. Even riders with smaller hands or little power in their fingers can easily bring the 4.29 to a stop with the use of just 1 or 2 fingers. With the control wheel attached to the brake lever you can easily adjust the braking power; either more aggressively or with a more friendly stroke. Also in wet weather conditions.

Durable transmission

Riding a lot, barely any maintenance

The 4.29 can be equipped with one of these three gear systems; Pinion, Rohloff or derailleur. Choose what suits you best.

Rohloff hub
Pinion gearbox
12 or 18 speed
Santos beltdrive
Also available
with derailleur

Care-free riding, little maintenance

Reliable Rohloff hub

Do you prefer to ride a lot of care-free kilometers? Choose the reliable and user friendly internal Rohloff gear hub with Santos belt drive. It transforms your 4.29 into a low-maintenance and super strong travel partner.

The Rohloff hub has 14 gears and is available in 6 colors.


12 or 18 gears

Low Maintenance Pinion gear system

You can also opt for the Pinion gear system. This type of transmission will be supplied with belt drive, which makes it a super durable and low maintenance combination. By default we mount the Pinion gear box with 12 gears, but 18 speed is also an option.

The Pinion box with 18 gears is available in 6 colors, choose the one that matches your bike.


Santos dropout system

Suitable for derailleur too

The rear dropout on our 4.29 is also suitable for derailleur. With this non-fixed derailleur part you can easily switch to another transmission system. The 4.29 suits your wishes now and those of the future.

Gates beltdrive and Santos belt tensioner

Durable Santos beltdrive

With the right belt and sprockets the bike's drive system is super durable. For all its models Santos chooses the best parts and has developed its own belt tensioner. This tiny wheel for the Pinion box keeps the belt tensioned and is located near the bracket. This makes the system super user friendly; removing the rear wheel can be done in an instant.

The 4.29 has this durable Santos belt drive. This means fixed dropouts (thus the certainty of a straight rear wheel), Gates belt drive and the Santos belt tensioner. It's the ultimate system for a lót of silent kilometers.


Santos Only

SON SL, modulaire kabelgeleiders, veel kleuren...

Many colors
modular cable guides
dynamo hub
5 sizes

Would you like lighting?

SON lighting à la Santos

In case you opt for the SON light set, you get a beautiful headlight with a wide, clear beam. This is a distinctive feature of the SON headlights.
We mount the headlight on a Santos headlight bracket, this provides a clear, straight beam above your front wheel.

The SON headlights are available in 6 colors, just like the corresponding SON dynamo hub and rear light.


Modular and clean

Santos cable guides

Santos developed modular cable guides for the 4.29. The cables run along your frame perfectly, without superfluous inserts. No matter how you customize the bike.


Color your world

Juicy Santos colors

Your Santos in your own color; choose from more than 50 frame colors, 14 letter colors and match your SON lights, Rohloff hub and/or Pinion box.


For everyone a unique bike

Which frame do you need?

Your wishes and needs determine the frame of your choice. Do you expect to bring a lot of luggage? Do you prefer paved roads, single tracks or both? Santos offers a suitable frame for every purpose.

By the way, your frame is available in more than 50 colors!


Choose the kind of gear system you like. We offer the unique possibility to choose from various gear systems; opt for the reliable Rohloff hub, the low maintenance Pinion gear box or an affordable derailleur system.

Both Rohloff and Pinion can be selected with Gates belt or chain.


The finishing touch; handlebars, saddle, tires, rims, fenders, brakes, lights, front fork, grips, carriers ánd color! It's completely up to you; you decide íf you need it and what exactly you prefer. The result: your unique Santos.


All sizes at a single glance

All sizes are in millimeters, unless mentioned otherwise.
Tip: testing says more than just numbers.

Size Seat tube length Top tube length Stand over height Head tube height Head tube - Dropout
S 400 575 749 917 606
M 450 595 769 917 607
L 510 615 806 922 611
XL 570 635 841 927 617
XXL 620 660 883 955 647

* Measured with Schwalbe Racing Ralph 54 mm tires.

Comparable models

Did you see these?

Cross Lite

A multifunctional gravel racer. It is light, it is fast and suitable for full packaging.

Travelmaster 2.9

The most versatile heavy-duty trekking bike. Big wheels and wide tyres for ultimate comfort and perfect road balance.

Travelmaster 3+

A world class world bike, for home use too.

Choose your bike

A good bike suits you perfectly

Is the 4.29 suitable for you?

When you are sure about your choice, you can use our customizer to configure your unique bike.

Customizer >


First go through our roadmap to be sure you made the right choice ór let this step-by-step plan help you to find out which Santos suits you even better.

Roadmap >

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2153 PL Nieuw-Vennep
+31 (0) 252 426 123

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