The Yuma 4 – 26 is your ticket to real action on two wheels. With 26-inch wheels, 140 mm of travel, and a rugged setup just like the “big” PROPAIN bikes, you’ll get the most out of every trail. Whether you’re hitting new jumps at the bike park or tackling technical trails right in your backyard, this bike is ready for any adventure.
from $2,499.00
Based on your height and inseam, we’ll show you if this model is the perfect fit for you. That way, you can be sure your bike is perfectly sized to give you maximum control, safety, and confidence on every ride.
The lightweight yet tough aluminum frame of the Yuma 4 delivers optimal stability and control. Perfect for young riders: light enough for climbs, strong enough for demanding trails. Tested to Category 5 standards, it withstands the toughest conditions and ensures long-lasting performance.
The Yuma 4 is designed to the same high standards as our adult bikes but optimized for young riders. With a modern slack head angle, steep seat angle, and a perfectly balanced mix of reach, stack, bottom bracket height, and chain stay length, you’ll feel right at home on the Yuma. This means a confident ride, easy handling, maximum control on descents, and a comfortable pedaling position for climbing back up.
The Yuma 4 – 26 is equipped with premium components built to last. It features a high-quality Sixpack youth-sized cockpit, grippy Continental Kryptotal tires, and robust NEWMEN wheels. A true standout is the SRAM Eagle 70 Transmission drivetrain, delivering unmatched shifting performance and maximum durability. The Yuma 4 – 26 also comes with specially tuned suspension for young riders—finely adjusted damping for lighter weights ensures a super-sensitive and responsive ride. Plus, you can customize your setup with a hydraulic dropper post in our configurator.
Our youth mountain bikes are always equipped with the largest possible wheels that best match the rider’s height. Bigger wheels provide greater roll stability, especially on rough trails, and make it easier to roll over obstacles.
Designed with the needs of young riders in mind, the Yuma 4 – 26 is equipped with carefully selected components that make it a full-fledged mountain bike for ambitious teens. Customize your bike to your taste: Just like all PROPAIN bikes, you can choose your frame color and match it with custom graphics. This way, the Yuma 4 – 26 becomes not just a top performer, but also your personal dream bike in terms of both style and performance.
Fork:
RockShox Reba 140 mm
Shock:
XFusion O2 PRO RL
Drivetrain:
SRAM Eagle 70 Transmission (1×12)
Brakes:
SRAM DB4 200 mm / 180 mm
Handlebar:
Sixpack Menace 725
Stem:
Sixpack Vertic 35
Seatpost:
Sixpack Aluminum / XFusion Manic
Saddle:
Sixpack 1st Ride
Wheels:
NEWMEN Performance 30
Tires:
Continental Kryptotal
For a tough youth bike, we rely on the benefits of a single-pivot rear suspension. With minimal moving parts, we keep the weight low and serviceability high. The 140 mm of travel on the Yuma 4, paired with the tuned air shock, delivers a responsive feel, maximum grip, and smooth progression for ultimate control and safety, even on bigger hits.
A quiet bike offers more safety and a better riding experience on the trail. Thanks to high-quality chain stay protectors and cleverly routed cables, the Yuma stays super quiet – allowing you to focus entirely on the action!
The Yuma 4 stands out with the signature PROPAIN design – modern, sleek, and functional. With clean lines and a thoughtful build, it fits perfectly into the PROPAIN lineup. A real head-turner on any trail.
Tools, snacks, or a spare tube – a handy storage bag for all the essentials on your next trail ride.
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Slightly large, but good to manage.
Bike can be handled with ease.
The adjustable seatpost is probably one of the most ingenious inventions of recent years. In order to function optimally on the trail, the proper seatpost travel is very important. The following chart shows the recommended minimum inseam for the corresponding frame size. Please keep in mind that this is only a recommendation, as the respective sitting position depends very much on personal habits and preferences.
| Yuma 4 – 26 | Tyee YTH – XS | Tyee YTH – S | Spindrift YTH – S | |
|---|---|---|---|---|
| Aluminium 350 mm | 68.5 | – | – | – |
| XFusion 100 mm | – | 72.0 | 74.0 | 76.0 |
| XFusion 125 mm | 69.5 | 75.0 | 76.5 | 78.5 |
| Shock length | 165 mm |
| Shock travel | 45 mm |
| Shock bushings | 25 x 8 mm |
| Travel (Frame) | 140 mm |
| Max. Travel (Fork) | 140 mm |
| Bottom bracket | BSA 73 mm |
| Brake mount (Frame) | Postmount 180 |
| Seatpost diameter | 31.6 mm |
| Seat clamp diameter | 34.9 mm |
| max. Seatpost insert length | 255 mm |
| Headset (S.H.I.S.) | Top: IS42 / Bottom: IS52 |
| Rear wheel axle | 148 x 12 mm |
| Chainguide mount | ISCG 05 |
| Derailleur hanger | UDH |
| Wheel size | 26″ |
| Max. system weight | 70 kg |
| Frame height (A) | 320 mm |
| Fork offset (B) | 41 mm |
| Fork length (C) | 520 mm |
| Head tube length (D) | 105 mm |
| Reach (E) | 390 mm |
| Stack (F) | 550 mm |
| Head angle (G) | 64.5° |
| Seat angle – real (H) | 74.1° |
| Seat angle – effective (I) | 74.1° |
| Top tube length (J) | 537 mm |
| BB offset FW/RW (K) | 1 mm |
| Chainstay length (L) | 425 mm |
| Wheelbase (M) | 1,122 mm |
| standover height* (N) | 697 mm |
| BB height (L) | 345 mm |
You have questions about your next bike?
Our customer service team is here to help and support you!
Book an appointment now for a consultation on the phone or in our showroom. Of course, you can also contact us via our chat on our website or by email. We look forward to hearing from you!
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