Grit - Titanium Gravel Bike
$4,250.00 AUD - $10,940.00 AUD
Go further. Without boundaries
A titanium adventure gravel bike built for fast mixed-surface riding, loaded utility, and long-distance confidence.
The Grit is Bossi’s unrestricted adventure gravel platform, built for riders who want one bike with real range: fast off-road riding, loaded utility, all-road capability, and the durability to handle rougher terrain.
It was designed for the way gravel is ridden now: broad compatibility, practical utility, clean integration, and the freedom to configure the bike around how you ride.
Stable, adaptable, and refined, the Grit gives riders a platform that can be built light, loaded, simple, or fully equipped, without losing the ride quality and control expected from a Bossi.
KEY FEATURES
The Grit is designed around stability, control, and long-distance utility. Approximately 67 mm of trail gives the bike stable, responsive handling with high-volume gravel tyres, while the longer front-centre reduces toe overlap and improves control on rough terrain. The 435 mm chainstays support traction, tyre clearance, and loaded stability, while the increased effective stack creates a more sustainable position for long rides and technical surfaces.
The Grit works well for riders who want one bike with two distinct setups. With high-volume gravel tyres, trail sits around 67 mm for stability and off-road control. With narrower road tyres around 30 mm, trail reduces to approximately 62 mm, giving the bike a sharper all-road character for faster sealed and mixed-surface rides.
The Grit includes the mounting provisions expected from a true adventure gravel bike: rack mounts, fender mounts, top tube mounts, multiple bottle positions, and fork mounts. These options allow the bike to be configured for daily gravel, long-distance riding, commuting, or loaded bikepacking without relying on workaround solutions.
Clearance for up to 700c x 50 mm or 650b x 2.2" tyres gives the Grit the range to suit different terrain, loads, and riding styles. Larger tyres improve traction, comfort, and control on rough surfaces, while narrower setups can sharpen the bike for faster all-road use.
Butted titanium tubing places material where strength is required, then reduces wall thickness through selected sections to lower weight and improve compliance. This helps the frame manage vibration and repeated impacts over rough terrain, reducing fatigue without dulling the response under power.
The T47 bottom bracket provides a strong, serviceable threaded interface suited to modern gravel drivetrains. It supports internal routing requirements and reduces the service issues often associated with press-fit systems. The Grit also uses 3D-printed UDH dropout architecture for improved drivetrain compatibility and long-term serviceability, including support for current SRAM Transmission standards.
The Grit supports practical routing options for different build styles, including provisions for dynamo lighting and dropper post use. This expands the bike’s utility for riders building around long-distance, remote, or more technical gravel use.
DESIGN BRIEF
Stable. Capable. Adaptable. Durable. Refined. Confident. Unrestricted.
The Grit was developed as a response to a clear shift in gravel riding. What began as a relatively simple category had become technically fragmented: different drivetrain formats, routing preferences, cockpit systems, tyre setups, luggage requirements, accessory needs, and expectations around crossover road performance. Riders no longer needed one narrow gravel configuration. They needed a frame platform that could support very different build directions without forcing compromise.
The design objective was to create an unrestricted adventure platform: a gravel bike with enough compatibility, clearance, utility, and durability to support serious off-road use, while still preserving the handling precision and ride quality that make the bike enjoyable when ridden fast - unlaiden, or on the road.
That meant designing the frame architecture around choice rather than one fixed build style. The headtube system was developed to support both conventional external routing and fully integrated cockpit systems, allowing riders to prioritise serviceability, travel practicality, cockpit preference, or front-end integration. The bottom bracket, yoke, and dropout architecture were developed around the same principle, giving the frame the internal space and routing pathways needed for mechanical, wireless, and wired electronic drivetrains.
The geometry was refined to make the bike more useful across its full range of setups. Longer front-centre reduces toe overlap with larger tyres and improves control on rough terrain. Increased bottom bracket drop lowers centre of gravity and improves stability, particularly as shorter cranks become more common in gravel. The 3D-printed yoke allows the rear end to remain responsive while still supporting tyre clearance, drivetrain clearance, and internal routing through one of the most constrained areas of the frame.
The utility brief was equally deliberate. The goal was not to cover the frame in mounts or turn it into a heavy expedition bike. It was to provide the practical features riders actually use - rack and fender compatibility, three bidon mounts, top tube mounts, fork mounts, dynamo routing, dropper compatibility, UDH, T47, and a 27.2 mm seatpost - while keeping the frame visually refined and mechanically coherent.
The result is a titanium gravel platform with more compatibility, more clearance, more utility, and more configuration range than a conventional gravel frame. It is a thoroughbred adventure bike with genuine all-road capability, designed for riders who want one platform that can be built light, loaded, simple, integrated, mechanical, electronic, fast, or practical - without the frame being the limiting factor.
HOW IT RIDES
The Grit is an adventure gravel bike built around stability, control, and long-distance utility. It is intended for riders who want one platform to handle fast gravel, mixed-surface riding, bikepacking, and all-road use without becoming nervous under load or vague on faster terrain.
The fit position is more sustainable than an aggressive gravel race setup. The external bearing cup increases effective stack without changing the underlying frame geometry, reducing saddle-to-bar drop and improving visibility, weight distribution, and fatigue management over longer rides.
A realxed head tube angle and approximately 67 mm of trail with gravel tyres creates stability on loose surfaces, fast descents, and rough terrain. The longer front-centre reduces toe overlap with larger tyres and improves front-end weight distribution, while the 76 mm bottom bracket drop lowers centre of gravity for better cornering and loaded ride-quality. The 435 mm chainstays support large-volume tyres, drivetrain clearance, rear-wheel traction, and loaded riding. With narrower road tyres, trail reduces to approximately 62 mm, creating a sharper all-road setup for riders using a second wheelset.
Butted titanium tubing supports the same use case. Wall thickness is increased where strength is required, then reduced through selected tube sections to lower weight and improve compliance. That compliance manages vibration and repeated impacts over rough surfaces, reducing fatigue without dulling response under power.
3D-printed yoke and dropouts
A prinetd yoke not only allows for wider chainring and tyre clearance but maintains internal cable routing and produces a seemless integrated finish.
Hydroformed profiles
The Grit tubeset is hydroformed in key areas to refine ride quality, improved durability, and add extra utility.
Flexible Routing
Compatible with fully-integrated, semi-integrated, and external cable routing offering full compatibality with all cockpit options.
Linished Welds
Welds are linished smooth by hand for a near seamless connection. The process is highly labour-intensive, but it is central to the Strada SS’s refined finish.
CORE BUILDS
1. GRX 1x Mech
- Bossi Grit frameset
- Shimano GRX RX 822 mech groupset
- Bossi Nomad carbon wheelset
- Cockpit selection configured in the product options above
- Prologo Nago saddle
- Pirelli Cinturato M Gravel tyres
- Bossi black bartape
- Tubeless
2. Rival AXS E1
- Bossi Grit frameset
- SRAM Rival AXS E1 XPLR/ or Eagle transmission groupset (matches cassette selection)
- Bossi Nomad carbon wheelset
- Cockpit selection configured in the product options above
- Prologo Nago saddle
- Pirelli Cinturato M Gravel tyres
- Bossi black bartape
- Tubeless
3. Force AXS E1
- Bossi Grit frameset
- SRAM Force AXS E1 XPLR / Eagle groupset (matches cassette selection)
- Bossi Nomad carbon wheelset
- Cockpit selection configured in the product options above
- Prologo Nago saddle
- Pirelli Cinturato M Gravel tyres
- Bossi black bartape
- Tubeless
4. RED AXS E1
- Bossi Grit frameset
- SRAM Red AXS E1 XPLR / Eagle groupset (matches cassette selection)
- Bossi Nomad carbon wheelset
- Cockpit selection configured in the product options above
- Prologo nago saddle
- Pirelli Cinturato M Gravel tyres
- Bossi black bartape
- Tubeless
Core Builds are configured through the options in the product purchase panel at the top of this page. Each build includes a curated specification, with selected rider-specific choices such as cockpit sizing, gearing, wheelset, tyres, saddle, and other available options confirmed before checkout.
Each Bossi is built to order. Once your order is placed, we will review your selected specification, confirm component availability, and provide an estimated build date. Typical Core Build lead times are 2–4 weeks, depending on frame availability, component supply, and current workshop scheduling.
Core Builds are limited to the options shown on this page. If you have a specific specification, component request, or more involved build in mind, please contact us to discuss a Custom Project.
- Compatible with fully integrated and semi-internal routing
- 3AL-2.5V titanium tubing
- 6AL-4V titanium bottom bracket (T47 86mm)
- 6AL-4V titanium head tube
- 6AL-4V titanium 3D printed Sram UDH dropouts
- Butted seat post and down tube
- Hydroformed top tube with flattened underside
- Hydroformed double-ovalised down tube
- 3D printed chain stay yoke
- Toray T800 monocoque carbon flat-mount disc fork
- 50mm fork offset
- Double ovalised chain stays
- Tapered and lowered seat stays
- 3 x bidon mounts
- Clearance for 1L bidon
- Flat mount disc brakes
12 x 100mm front and 12 x 142mm rear Thru-axle - Tapered head tube ZS 44mm upper – 1 1/2” integrated lower
- Mechanical / electronic groupset compatible
- Top tube mounts
- Internal cable routing
- 27.2mm seatpost
- Laser engraved logos
- Pannier rack mounts on fork and seat stays
- Full fender mounts front and rear
- Clearance for 50c(700c) and 2.2"(650b) tyres
- Brush Finish
- CNC engraved headtube
- Suitable for 700c and 650b wheelsets
Bossi frames are offered in sizes 50, 52, 54, 56, 58 and 60. The right size for you will depend on more than height alone, including your proportions, flexibility, riding style and fit preferences.
As a general guide:
50 suits smaller riders, typically around 160–168 cm
52 suits riders around 168–173 cm
54 suits riders around 173–178 cm
56 suits riders around 178–183 cm
58 suits riders around 183–188 cm
60 suits taller riders, typically around 188–196 cm
These height ranges are approximate only. Some riders may fall between sizes depending on leg length, torso length, arm length, mobility and desired riding position.
If you are between sizes, the best option will depend on how you want the bike to fit and feel. A smaller size may offer a slightly more compact and responsive fit, while a larger size may provide a little more reach and stack.
If you are unsure which size is right for you, we recommend getting in touch before ordering. We are happy to review your current bike fit, body dimensions and intended use to help guide you into the right size.
FRAMESET CONFIGURATIONS
FULLY INTEGRATED ROUTING
Installation of a 1.5" bearing cup creates compatibility with the majority of fully integrated cockpits on the market. Cable entries are covered with titanium blanking plates. Ships with Nomad fork. See link below for more details.
SEMI INTERNAL ROUTING
Installation of 1.125" bearing cup allows for conventional cable routing leading to easier maintenance and packing when travelling. Shipped with Nomad ADV fork. See link below for more details.
FREQUENTLY ASKED QUESTIONS
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Use the size guide on this page as a starting point. The right size will also depend on your proportions, flexibility, riding style and fit preferences. If you are unsure, get in touch and we can help guide you based on your measurements and current bike.
If you've had a professional bike fit before, email us your report and we will guide you through component selection
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Yes. Bossi framesets can be purchased on their own, or as a complete bike as one of our Core Builds.
We employ industry standards in our frame designs ensuring wide compatibility with components and ease of assembly by any qualified mechanic. -
Each frameset includes the frame, carbon fork, carbon seatpost, headset, expansion plug, alloy spacers, thru-axles and seatpost clamp.
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Core Builds are complete bikes with carefully considered specifications chosen to suit the intended character of the model.
Custom Projects offers a greater level of customisation for riders who want to curate their build in more detail, include non-standard finishes,
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Yes. All complete bicycles are built to order here in Australia. Once your order is placed, we confirm sizing, specification and component availability before the build begins. Our current lead time on complete bikes is roughly 2-4 weeks.
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Lead times vary depending on frame availability, selected components and current workshop scheduling. Framesets are typically instock and fulfilled within 48 hours, while complete bicycles require additional time for assembly, setup and final quality control. We will confirm the expected timeline after purchase. On average, complete bicycles are fulfilled within 2-4 weeks.
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For Core build orders, you can select your preffered gearing, crank length, and cockpit size. For further customisation, please contact us and we can discuss the requirement of your custom project and quote accordingly.
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Yes, we ship internationally. For more information on shipping rates, delivery timeframes, duties and taxes, please visit our Shipping page or get in touch before ordering.
SHIPPING -
Yes. If you are deciding between frameset, Core Build or a more custom configuration, we are happy to help guide you based on your riding, fit requirements and budget. Contact us and we'll arrange a consultation.
