Redchilli GR1 “Hors Route”

Redchilli GR1 Hors Route

The Versatile Carbon Gravel Bike Engineered for Adventure, Stability, and All‑Terrain Performance

If you want a bike that opens up new routes, new terrain, and new possibilities, the Redchilli GR1 delivers the perfect blend of speed, stability, and rugged versatility. Built around a full carbon frameset, the GR1 is lightweight, responsive, and engineered for riders who want freedom beyond the tarmac — without compromising performance.

Whether you’re tackling fast gravel, mixed‑surface endurance rides, or long days exploring new routes, the GR1 offers predictable handling, vibration‑damping comfort, and the durability you need to ride further. It’s a bike that feels fast on the road, capable on the rough stuff, and endlessly fun everywhere in between

Confidence, Control & Capability — Wherever the Ride Takes You
Every aspect of the GR1 has been engineered for stability and versatility. The optimised gravel geometry provides a planted, confidence‑inspiring ride on loose surfaces, while maintaining the agility and responsiveness Redchilli riders expect.

The full carbon frame and fork absorb vibration and keep handling precise, even when the terrain gets rough. Wide tyre clearance allows you to run larger tyres for grip and comfort, and multiple mounting points give you the freedom to carry bottles, bags, and adventure gear. Whether it’s a fast gravel spin, a day‑long adventure, the daily commute, or a relaxed ride with friends — the GR1 is ready. In fact, it’s simply gravelicious….

Why Riders Choose GR1

  • Full carbon frameset for lightweight performance and comfort
  • Versatile across gravel, road, and mixed terrain
  • Stable, confidence‑inspiring geometry
  • Wide tyre clearance for grip and control
  • Multiple mounting points for adventure setups
  • Custom‑built to your fit, terrain, and riding style
Example bike builds

  • Hand‑built in Great Britain, with every GR1 assembled in Axminster, Devon.
  • Full carbon gravel frameset, engineered for lightweight strength, comfort, and all‑terrain performance.
  • Advanced 3D mandrel carbon construction for smoother internal walls, reduced wrinkles, and increased structural integrity.
  • One‑piece moulding improves stability, stiffness, and durability across both front and rear triangles.
  • Max tyre clearance of 700×50 for greater grip, comfort, and terrain versatility.
  • Compatible with both 1x and 2x drivetrains to suit your riding style and terrain.
  • Supports up to a 50–34 chainset for riders who want additional speed on the road.
  • Box‑section tubing enhances torsional stiffness and improves handling on loose surfaces.
  • Full internal cable routing for clean aesthetics and year‑round protection.
  • Rigorously tested to meet and exceed ISO 4210 standards.

  • Every GR1 custom build begins with choice. You can select our fully integrated one‑piece carbon gravel cockpit — the Redchilli IRB‑G — or choose a separate handlebar and stem for maximum adjustability in bar rotation, flare, and lever positioning. Because gravel riding demands comfort, control, and confidence across varied terrain, we’ll help you find the cockpit setup that feels perfect for your style of riding.
  • If you’re able to visit us in Axminster, we offer full bike‑fitting and saddle‑fitting services to ensure your GR1 matches your flexibility, preferred riding position, and the type of terrain you enjoy most. And of course, we’ll make you an excellent cup of tea or coffee while we work through the details..
  • If visiting isn’t possible, we can arrange a detailed video consultation, telephone call, or email discussion. This allows us to understand your fit, preferences, and performance goals so we can build your GR1 exactly the way you want it.
  • You can choose from our signature colour range, special finishes, or create your own custom design. It’s Your Bike – Your Way, and we’re here to help you bring your vision to life. (Additional charges may apply for full custom paint. Please enquire.)
  • After your consultation, we’ll provide a detailed build specification sheet along with 2–6 tailored build options, each with clear pricing. Build times vary depending on frame availability and paint choice: Signature Edition builds can be ready in as little as 7–10 days, while full custom paint typically takes 5–7 weeks. We’ll keep you updated throughout the process.
  • Once your frame and components are ready, your GR1 is hand‑built here in Axminster. You’re welcome to visit for a test‑fit before final assembly — and enjoy another cup of tea or coffee while your adventure‑ready machine comes to life.

GR1 Geometry Overview

  • Redchilli GR1 "Hors Route"

The GR1 is built around an adventure‑ready geometry that prioritises stability, comfort, and control across unpredictable terrain. A generous wheelbase, relaxed head angle, and balanced stack height keep the bike composed on loose gravel and demanding off‑road sections, while still offering efficient on‑road performance. It’s a geometry that encourages exploration — confident, smooth, and capable mile after mile.

Key Geometry Traits:

  • Confident stability thanks to long wheelbase and 435mm chainstays
  • Predictable handling from relaxed head‑tube angles (70.5°–72°)
  • Balanced endurance fit with generous stack across all sizes
  • Efficient power transfer supported by consistent reach progression
  • Smooth, composed ride feel on loose and technical terrain

Recommended Rider Height:

Size 49 — 5’1″–5’4″ (155–163 cm)
Size 52 — 5’4″–5’7″ (163–170 cm)
Size 54 — 5’7″–5’10″ (170–178 cm)
Size 56 — 5’10″–6’1″ (178–185 cm)
Size 58 — 6’1″–6’4″ (185–193 cm)

Fit Reassurance:

Not sure which size is right? We’ll confirm your perfect fit during your custom build consultation. Our fit philosophy ensures your position is optimised for power, comfort, and control, whether you prefer an aggressive race stance or a more endurance‑focused setup.

Contact us

The GR1 is ideal if you want a bike that can do it all — from everyday riding and social group spins to exploring gravel tracks, bridleways, and mixed‑terrain routes. Its balanced geometry and confident handling make it just as comfortable on long road miles as it is on loose, technical surfaces. If you’re looking for a versatile, smooth‑riding frameset that encourages adventure without sacrificing speed or efficiency, the GR1 is the perfect choice.

step 1
Personal Contact

David (founder of Redchilli) will contact you directly to introduce himself and understand what you’re looking for.

step 2
Fit & Ride Style Discussion

We’ll talk through your sizing, riding style, goals, and budget so we can recommend the perfect build.

step 3
Tailored Build Proposal

You’ll receive a personalised build outline with components, pricing, and options — no pressure, no commitment.

step 4
Build Confirmation & Deposit

Once you’re completely happy with your build, we take a 20% deposit to begin production of your frameset in your chosen size and custom colour scheme.

step 5
Final Assembly, PDI & Personal Handover

Your bike is individually built and QC‑checked by hand.
Every build includes a full PDI (Pre‑Delivery Inspection) report, completed and signed by David — ensuring complete accountability and peace of mind.
When your bike is ready, you can collect it — or David will arrange a personal handover, meeting you part‑way to ensure your fit is perfect and answer any questions.


This boutique level of service is something you simply won’t find with mainstream brands.

Redchilli GR1 Example Build

Every rider has a different vision for their perfect GR1 – which is why every Redchilli is built to order. Below are three curated builds to help you explore what’s possible, from performance focused value, to full race ready specification. Use these as inspiration and we’ll tailor your GR1 to your fit, your riding style, and your budget. It’s Your Bike – Your Way.

Discuss Your GR1

EXAMPLE CORE BUILD

  • Frameset: Redchilli GR1 Full Carbon with Full Internal Cable Routing
  • Fork: Redchilli GR1 Full Carbon
  • Groupset: Full Shimano GRX RX610 1x 12 Speed with Hydraulic Disc Brakes
  • Wheelset: Shimano WH-RX180 with 21mm Rim Depth and Micro Spline Freehub
  • Tyres: Schwalbe G-One RX Performance RaceGuard TLR Tubeless
  • Cockpit: ControlTech Cougar Internal Routed Bar & Stem
  • Bottom Bracket: Miche T47-EC
  • Seatpost: Redchilli GR1 Carbon
  • Saddle: Prologo Akero R PAS 150 Active Base
  • Handlebar Tape: Pro Sport Comfort
  • This CORE build brings the GR1’s all‑terrain versatility to life with a dependable 1x 12 GRX RX610 drivetrain, the highly rated tubeless‑ready Schwalbe G‑One RX tyres, and Shimano’s RX180 wheelset — a combination that delivers confident handling and smooth, predictable performance across mixed surfaces. It’s a robust, well‑balanced introduction to the GR1 platform, giving you the control and capability to take on gravel, bridleways, and rougher lanes with ease. This CORE level build offers a refined and performance‑focused introduction to high‑level gravel.
  • And as with all Redchilli custom bike builds, you choose the key fit and gearing options — including crank length, chainrings, and cassette ratios — ensuring the bike is perfectly tailored to your riding.

£ TBC

Select CORe Build

EXAMPLE ELITE BUILD

  • Frameset: Redchilli GR1 Full Carbon with Full Internal Cable Routing
  • Fork: Redchilli GR1 Full Carbon
  • Groupset: Full Shimano GRX RX717 1x 12 Speed Di2 with Hydraulic Disc Brakes
  • Wheelset: Mavic Allroad with 22mm Rim Depth and Micro Spline Freehub
  • Tyres: Schwalbe G-One RX Performance RaceGuard TLR Tubeless
  • Cockpit: Redchilli IRB-G One-Piece, Fully Integrated Carbon Cockpit
  • Bottom Bracket: Miche T47-EC
  • Seatpost: Redchilli GR1 Carbon
  • Saddle: Prologo Proxim Nembo 145 T2.0 Gravel
  • Handlebar Tape: Pro Sport Comfort
  • This ELITE build elevates the GR1’s performance with Shimano’s latest GRX RX717 Di2 groupset, delivering crisp wireless shifting and enhanced control across varied terrain. The upgrade to Mavic’s Allroad wheelset adds extra efficiency and stability, while the Redchilli IRB‑G one‑piece integrated carbon cockpit brings improved front‑end precision and a clean, streamlined aesthetic. Together, these enhancements create a faster, more responsive GR1 for riders seeking greater refinement and capability on mixed‑surface routes, and deliver a confident step into higher‑level gravel.
  • And as with all Redchilli custom bike builds, you choose the key fit and gearing options — including crank length, chainrings, and cassette ratios — ensuring the bike is perfectly tailored to your riding.

£ TBC

UPGRADE TO ELITE Build

EXAMPLE PRO BUILD

  • Frameset: Redchilli GR1 Full Carbon with Full Internal Cable Routing
  • Fork: Redchilli GR1 Full Carbon
  • Groupset: Full Shimano GRX RX825 1x 12 Speed Di2 with Hydraulic Disc Brakes
  • Wheelset: Redchilli GL Carbon with 45mm Rim Depth and 60T Ratchet Hub
  • Tyres: Schwalbe G-One RS Pro Evo V-Guard TLR Tubeless
  • Cockpit: Redchilli IRB-G One-Piece, Fully Integrated Carbon Cockpit
  • Bottom Bracket: Miche T47-EC
  • Seatpost: Redchilli GR1 Carbon
  • Saddle: Prologo Dimension R2 AGX PAS Slide Control 143 Tirox
  • Handlebar Tape: Pro Sport Comfort
  • This PRO build unlocks the GR1’s full performance potential with Shimano’s flagship GRX RX825 Di2 groupset, delivering exceptionally precise wireless shifting across demanding terrain. Our Redchilli GL carbon gravel wheels — with their wide 31mm profile, deep‑section rims and 60T ratchet hub — add outstanding speed, stability, and responsiveness. Combined with the IRB‑G integrated carbon cockpit, Schwalbe G‑One RS Pro Evo tyres, and an upgraded Prologo Dimension R2 AGX saddle, this build delivers the refinement and capability that set it apart in the gravel category.
  • And as with all Redchilli custom bike builds, you choose the key fit and gearing options — including crank length, chainrings, and cassette ratios — ensuring the bike is perfectly tailored to your riding.

£ TBC

UPGRADE TO PRO Build

YOUR COLOUR. YOur Style.

Every Redchilli is hand‑finished in your chosen colourway — from bold race tones to subtle, understated finishes. Choose from our signature Redchilli colours or create something uniquely yours.

Every finish is hand‑applied for a flawless, premium look.

Your bike should look as fast as it rides. And remember — it’s Your Bike. Your Way.

  • Please note: a surcharge of £80 applies to our Special Colour range. Additional charges may apply for more detailed custom colourways — please enquire.

Custom Bike Build Consultation

At Redchilli, every bike is built just for you.

Every Redchilli is built around you — your fit, your riding style, and your performance goals. A custom build consultation is the first step in creating a race bike that delivers exactly what you need on the road. Whether you’re chasing aero gains, dialled‑in handling, or a perfectly balanced race position, our expert team will guide you through the ideal components, gearing, cockpit setup, and finishing kit to maximise your speed and comfort.

During your consultation, we’ll discuss your riding, your measurements, and your preferences in detail, then create a tailored GR1 build specification with clear pricing and options. This is a personalised, one‑to‑one service designed to give you a bike that fits and performs better than any off‑the‑shelf alternative.

If you’re ready to start your custom bike build, contact us today and we’ll arrange your consultation — in person, by video, or by phone. Your custom Redchilli begins with a conversation, and we’re here to help you create a bike that’s uniquely yours.

Let’s Create Your GR1
  • Additional costs will apply for your own, full custom colour design.
  • Redchilli reserves the right to modify, without prior notice, all product information shown here.

More From the Redchilli Complete Bikes Collection

Take a look at our other Redchilli Complete bikes and discover a full range of thoughtfully engineered builds, designed to deliver outstanding performance straight out of the box.

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