The ultimate titanium gravel bike for maximum independence and epic distances.
The T4ST marks the logical evolution of our tried-and-tested Speedtraveller series. It has been specially developed for riders who refuse to accept any compromise between sporty performance and uncompromising touring capability.The foundation is a masterfully hand-welded frame made from cold-drawn 3Al/2.5V titanium tubes. The design focused on achieving the perfect balance between titanium’s legendary, material-specific inherent damping and high efficiency.
A specially hydroformed down tube massively increases torsional stiffness in the bottom bracket and head tube areas. As a result, the bike remains absolutely stable even under maximum load and can be steered precisely in any situation.
The balanced geometry combines a moderately extended wheelbase with a smooth-riding steering angle. This provides a noticeable sense of security on long gravel sections without compromising agility on technical terrain.
Technically, the T4ST is designed for maximum versatility. The generously sized tyre clearance now accommodates tyres up to 50 mm wide on 28-inch rims. This covers a wide range, from fast semi-slick tyres to high-traction knobby tyres.
The integration of mounting points is deeply embedded in the frame design. Discreetly positioned eyelets allow for the neat fitting of full-size mudguards, lowriders or rear luggage racks, as well as three bottle cages.
The technical profile is rounded off by modern standards. Flat-mount brake mounts, 12x142 mm thru-axles and a service-friendly T47 threaded bottom bracket guarantee worldwide reliability and easy maintenance whilst on tour.
Like all new titanium frames from VPACE, the TRLX now also features a UDH derailleur hanger.
Geometry
| XS / 48 | S / 53 | M / 56 | L / 58 | XL / 60 |
Seat tube | 500 | 540 | 560 | 580 | 600 |
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Top tube (horizontal) | 525 | 539 | 565 | 585 | 601 |
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Head tube | 130 | 150 | 175 | 190 | 210 |
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Reach | 360 | 360 | 380 | 395 | 405 |
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Stack | 558 | 578 | 604 | 620 | 641 |
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Seat angle | 73.5 | 73 | 73 | 73 | 73 |
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Steering angle | 70.5 | 71 | 71.5 | 72 | 72.5 |
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Chainstay | 435 | 435 | 435 | 435 | 435 |
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Bottom bracket drop | 72 | 72 | 72 | 72 | 72 |
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Fork lead | 45 | 45 | 45 | 45 | 45 |
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Wheelbase | 1008 | 1011 | 1034 | 1049 | 1061 |
Geometry
| Frame size | M | XL | S | L | XS |
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| ASitzrohr | 560 | 600 | 540 | 580 | 500 |
| BOberrohr | 565 | 601 | 539 | 585 | 525 |
| CSteuerrohr | 175 | 210 | 150 | 190 | 130 |
| DLenkwinkel | 71.5 | 72.5 | 71 | 72 | 70.5 |
| ESitzwinkel | 73 | 73 | 73 | 73 | 73.5 |
| FBB-Drop | 72 | 72 | 72 | 72 | 72 |
| GKettenstreben | 435 | 435 | 435 | 435 | 435 |
| HRadstand | 1034 | 1061 | 1011 | 1049 | 1008 |
| JReach | 380 | 405 | 360 | 395 | 360 |
| KStack | 604 | 641 | 578 | 620 | 558 |
| OGabel Einbauhöhe | 400 | 400 | 400 | 400 | 400 |
| PGabelvorlauf | 45 | 45 | 45 | 45 | 45 |
Frequently Asked Questions
VPACE Kids Bikes are sporty bicycles and components designed specifically for children, setting new standards in quality, performance and design:
- Lightweight
- Well-thought-out, child-specific geometry
- Larger wheels thanks to the 29er principle
- Top-quality components from renowned manufacturers
- Good value for money
- Low actual running costs due to the high resale value
On the one hand, you can really put our bikes through their paces at our Test Centre partners and experience the VPACE ‘aha’ moment; and on the other hand, you can visit our showroom in Horgenzell, where you can view all our kids’ bikes and even take them for a test ride.
- Straighten the handlebars
- Fit the front wheel
- Adjust the saddle to the correct height
- Screw on the pedals
1. Measure height
To determine height, have your child stand barefoot, upright with their back against a wall. Now place a book horizontally on their head and measure the distance from the floor to the bottom edge of the book.
2. Measure the inseam
To determine the inseam, have your child stand barefoot, upright with their back against a wall, clamp a book between their legs and pull it upwards into their crotch with the top edge horizontal. Now measure the distance from the floor to the top edge of the book. The length you’ve measured is your child’s inseam.
3. Determining the right bike size / frame size
As well as height, inseam length also plays an important role in determining the right bike size/frame size. To ensure your child can ride safely, their inseam length should be at least equal to the standover height of the selected size.



