Timeless design and reliability, built with light and durable Columbus steel tubing
Columbus Zona
Frame
SRAM Force E1 AXS
Wireless drivetrain
from 9.6 kg
Bike weight
700x45c
Max. tyre width
product unavailable
Design: Tadek Ciechanowski
Paintwork: Dreamworkers
Orange Green is our tribute to the bold aesthetics of the late 20th century. Metallic green and orange shimmer subtly, creating a striking contrast with the pastel beige base. All it takes is a closer look – the details do the work.
The design was created by Tadek Ciechanowski, a photographer and graphic designer from Wrocław, with whom we've worked for years. Tadek also took the photos of the model against a colorful background that perfectly complements the design. The metallic paints used in Orange Green contain microscopic metal flakes, which reflect light. The finish transforms completely in sunlight!

Design: Tadek Ciechanowski
Paintwork: Dreamworkers
Olive Black was born out of a love for bikepacking. The simple form and clean transition from deep olive to black are a perfect match for a bike made for forest trails and long-distance exploration. The project was complemented by a limited series of Triglav bags designed especially for this model.
The finish is achieved by using a dedicated clear coat that contains different components than those in a full-gloss lacquer. This allows the paint to scatter light more strongly, creating the characteristic matte effect. The design was created by Tadek Ciechanowski, a photographer and graphic designer from Wrocław, with whom we've collaborated for many years. Tadek also photographed the model against a colorful background that perfectly complements the design.

Do you have your own bike design idea?
We'll help you make it a reality!
LOCA.CSTM is a close collaboration with our team. Whether your idea for a new project is fully fleshed out or you're just starting your journey – you decide the final design and configuration!

Columbus Zona steel (IT), handmade in Poland, BSA 68 threaded bottom bracket shell (from 2000 g), 12x142x1.5 axle, (164 mm)
Hand-painted in Poland using wet paint technology for complex visual effects
Carbon, tapered (from 540 g), 12x100x1.5 axle (120 mm)
S (50 cm) | M (53 cm) | L (56 cm) | XL (59 cm)
SRAM Force AXS E1, 2x12
SRAM Force AXS E1, 2x12
SRAM XG-1270, 10–36T, 2x12
SRAM Force 2x12 AXS E1 carbon 46/33t, 165 mm (S); 170 mm (M); 172.5 mm (L, XL)
SRAM DUB BSA
SRAM Force AXS E1 Flattop (purple)
SRAM Force AXS E1 Carbon
SRAM Force AXS E1
SRAM HS2 160 mm
ZIPP SERVICE COURSE 70 XPLR 400 mm (S) | 420 mm (M, L) | 440 mm (XL)
ZIPP Service Course CX
ZIPP Service Course -6° 80 mm (S) | 90 mm (M) | 100 mm (L) | 110 mm (XL)
ZIPP 303 XPLR S Carbon | Mavic Allroad 700
Tufo Thundero HD 700x44C, reinforced casing to help prevent cuts, one of the fastest gravel tyres on the market
Carbon, 30.9 mm; 0 mm offset
Selle Italia Novus Boost (245x145mm)
Not included
From 9.6 kg
130 kg (ZIPP 303 XPLR S Carbon) | 120 kg (Mavic Allroad 700)

The geometry of our steel bikes is much more relaxed compared to our aluminium gravel frames. A significantly taller head tube results in a higher stack and space for 700x45c tyres, making the steel Loca the most comfortable bike we've ever built.
It's perfect for bikepacking adventures and ultra-distance rides. At the same time, we kept it well-balanced – the rear triangle remains fairly short, keeping handling lively and acceleration sharp in sprints.

| Size | S | M | L | XL |
|---|---|---|---|---|
| A Seat tube c-t (mm) | 500 | 530 | 560 | 590 |
| B Effective TT (mm) | 533 | 550 | 569 | 587 |
| C Head tube (mm) | 110 | 140 | 160 | 180 |
| DChainstay (mm) | 425 | 425 | 425 | 425 |
| EHT angle(°) | 71 | 71 | 71,6 | 72 |
| FST angle (°) | 73 | 73 | 73 | 73 |
| GWheelbase (mm) | 1003 | 1022 | 1035 | 1049 |
| HBB drop (mm) | 72 | 72 | 72 | 72 |
| I Reach (mm) | 370 | 379 | 391 | 403 |
| J Stack (mm) | 545 | 574 | 595 | 615 |
Rastro ST is a timeless classic reimagined – built with one goal in mind: endless exploration. At its core lies a hand-brazed frame made in Wrocław from Italian Columbus Zona tubes,
paired with iconic Paragon Machine Works dropouts (Made in USA). Thanks to the fatigue resistance
of high-quality steel, this might be the last gravel bike you'll ever need.


Rastro ST is our vision of the ultimate expedition bike. A steel gravel bike designed from the ground up for bikepacking, long-distance travel, and mixed terrain riding.
Built to handle everything you plan – and more.
The premium Columbus Zona steel tubes are incredibly lightweight for steel, combining excellent stiffness with exceptional vibration-dampening
Wireless levers mean a clean cockpit and precise shifting. Tight gear steps and a wide range give you an advantage on climbs and fast sections alike. HS2 rotors dissipate heat better and boost braking power by up to 7% – brake with confidence even in extreme conditions. The carbon crank and derailleur cage bring greater stiffness and lower weight, while the extra buttons on the levers let you control your navigation more easily while riding.
Steel doesn't have to be heavy! High-quality materials, components, and thoughtful design let us achieve a weight comparable to many carbon bikes.
The tyre clearance that meets modern standards opens up huge possibilities for tyre selection, allowing you to use the best gravel tyres available on the market.

Thanks to our collaboration with Wrocław-based craftsmen, our steel frames are true works of art. We use Italian Columbus tubes with carefully selected profiles to ensure outstanding ride quality. The fillet brazing technique makes the joints nearly
invisible – just like on carbon frames.

Thanks to smartly integrated features, our gravel bikes are perfect for long-distance touring. Multiple mounting points for cages, racks and mudguards open the door to bikepacking and countless cycling adventures.

Carefully selected components deliver reliability and comfort on every kilometre.
We use advanced wireless SRAM AXS groupsets in most of our gravel builds. Why? Set it once and forget it. Flawless shifting no matter the conditions, massive gear range, long battery life, low weight, great stiffness and a clean look. What more could you ask for?
From the legendary ZIPP 303 XPLR S carbon wheels, through boutique Dandy Horse builds, to bombproof Mavics – we rely only on proven solutions that we have been riding ourselves for years. Tyres are just as important. We chose the Czech Tufo Thundero HD – one of the fastest gravel tyres on the market, with a reinforced casing that stands up brilliantly to cuts.
In cycling, the most important people are those who ride the bikes. Read what media and our customers say about LOCA Bikes.
All in-stock bikes are shipped within a week. Remember that most orders are custom-made, and delivery time is between 2–3 months.
You can pay:
We use trusted and secure payment providers, and you'll receive confirmation immediately after payment.
All bikes undergo thorough testing: frame and fork design, factory inspection, painting, assembly, and test rides. This ensures the highest quality and durability.
For Poland, Germany, Austria, and the Czech Republic, bikes are delivered fully assembled – simply attach the pedals and rotate the handlebars.
For other countries, you will also need to insert the saddle and seat post, attach the front wheel, and secure the handlebars.
Yes! With years of cycling experience, we can help choose the right frame size and components.
Already have bikefitting measurements? We'll adjust the components to replicate your position.
No measurements? We can suggest bikefitting locations and then build your bike according to the fitter's recommendations.
Absolutely! We service bikes purchased from us all year round.
Have a bike from another brand? Please call us in advance to check available appointments.
Yes! Visit our showroom in Wrocław.
Want to test a specific model or size? Please contact us in advance
The first words that come to mind are Absolutely! We design all models with a simple idea in mind: Would we want to ride them ourselves?
The bikes undergo rigorous durability tests and multi-stage quality control. The frames meet European ISO standards. Additionally, we test the models on our behalf in a leading German laboratory, EFBE, according to even more rigorous standards.
Each unit undergoes: frame quality control upon receipt, paint quality control after painting, and technical inspection after assembly. We work with regularly calibrated torque wrenches from one of the best brands on the market, Wera. We only use professional tools from renowned companies such as Park Tool, VAR, Unior, Wera, Shimano, SRAM, Cyclus, Enduro, DT Swiss, and Feedback Sports.
We want to be proud of every bike you receive and create products that you can ride with confidence for years to come.
Didn't find an answer in the FAQ? Reach out to us here and we'll be happy to help!
