Who is Bossi? Their Purpose
“At Bossi we hold ourselves to the highest standards striving to produce the best possible products with exceptional quality and service to match. While we’re still a small company, we have partnered with ethical suppliers who employ advanced manufacturing processes to help bring our vision to life. We’ve created a new generation of elite titanium bikes that go beyond traditional manufacturing in form and function, whilst remaining accessible to the broader market.”
The Bossi Grit SS
“We are proud to unveil the Grit SS, an innovative gravel frameset that sets new standards in its class. Leveraging advanced manufacturing processes, including die-cast headtubes, 3D-printed yokes, 3D-printed dropouts, and hydroformed tube profiles, the Grit SS achieves a perfect balance of enhanced aerodynamics, reduced weight, and unwavering strength.”
“Inspired by the design principles of our flagship Strada SS road model, the Grit SS emerges as a faster and more focused counterpart to our adventure-oriented Grit SX. With a lighter, more aerodynamic frameset and tighter geometry, the Grit SS elevates its performance both on the road and off. Responding to rider demands: The Grit SS – our inaugural fully-integrated gravel frame.”
Innovative Manufacture
“For the first time, we utilise a combination of die-casting and 3D printing to craft the intricate forms featured on the Grit SS. The flexibility of 3D printing enables size-specific geometry on smaller components, while die-casting is employed for the headtube to ensure a superior finish and aesthetic consistency with extruded tubes.”
Full Integration
“Breaking new ground for Bossi gravel designs, the Grit SS is fully integrated and designed exclusively for electronic groupsets. The 1.5” headtube is compatible with most integrated cockpits on the market, as well as our own offerings.”
SRAM UDH
“Featuring SRAM’s Universal Derailleur Hanger (UDH), the Grit SS provides functionality to safeguard rear derailleurs from impact, offering universal compatibility for ease of replacement when needed.”
Weight Reduction
“durability. With a weight reduction of 150g (against our Grit SX), a size 54 frame now weighs in at 1.75kg. Rigorously tested to meet ISO4210 impact and fatigue standards, the Grit SS is backed by our 50-year global warranty.”
Utility
“Race-refined without compromise, the Grit SS maintains generous 700x50c tyre clearance, 3x bidon mounts, top tube mounts, fork rack mounts, rear rack mounts, and full fender mounts, catering to all your racing and adventure needs. The conventional 27.2mm seat post standard ensures compatibility with sprung, dual-pivot, and dropper seat posts.”
Geometry
“Derived from our popular Grit SX, the Grit SS features refined geometry for a tighter, more responsive ride. A shortened chain stay, courtesy of the new 3D printed yoke, increases chainring clearance without compromising tyre clearance. Adjustments to the bottom bracket drop and stack height enhance responsiveness and agility while maintaining all-day practicality and versatility, values at the heart of all Bossi designs.”
Price and Availability
“The Grit SS frameset is priced at $6920 AUD, inclusive of titanium frame, carbon fork, carbon seat post (0/20mm offset), headset, expansion plug, thru-axles, and seat post clamp. The Bossi integrated carbon gravel cockpit is available at $800 AUD. International prices will be adjusted to accommodate local tax rates. Build as shown RRP $14785 AUD (Australian price, build kit below).”
Sizes / Features / Geometry
Cockpit Sizes:
- Adventure: 420×100, 440×100 mm
- Race: 415×110, 435×120 mm
Frame Sizes:
- 50,52,54,56,58,60cm
- Shipping March 2024
Frameset Features:
- Aero die-cast 6AL/4V head tube
- Hydroformed 3AL/2.5V aero down tube
- Hydroformed 3AL/2.5V top tube with bag mounts
- Ovalised and tapered 3AL/2.5V chainstays
- Tapered 3AL/2.5V seatstays with rack mounts
- 3D Printed 6AL/4V size specific dropouts
- 3D printed 6AL/4V chain stay yoke
- CNC 6AL/4V 86mm T47 bottom bracket
- Fully integrated cable routing
- 3x bidon mounts, adjustable position on seat tube for 1L+ bottles
- Triple fork rack mounts
- 12mm thru axle (12x100mm front, 12x142mm rear)
- Flat mount disc brake
- SRAM UDH (ships with UDH compatible direct mount hanger option)
- 27.2mm seat post
- Seatstay bridge
- Chainstay bridge
- Full fender mounts
- Chain holder on seatstay
- CNC headtube logo
- Laser engraved downtube logos
- Brush finish
- 700x50c tyre clearance, 27.5” x 2.2”
- Electronic groupsets only
Build Kit (as shown in the complete bike photos), others kits available:
- Bossi Grit SS frameset (54)
- SRAM RED AXS 1x XPLR groupset
- Bossi carbon GR35 700c wheelset
- Bossi integrated carbon gravel cockpit (115×435)
- Selle Repente Artax Carbon saddle
- Panaracer Gravelking SK Plus 700x50c tyres
- Burgh Matter Stealth bartape
- Weight = 8.9Kg
- $14,885 AUD / $US 9,850 approx.
Frame Geometry:
| 50 | 52 | 54 | 56 | 58 | 60 | |
| ETT | 526 | 534 | 549 | 565 | 583 | 597 |
| Reach | 370 | 373 | 381 | 388 | 395 | 401 |
| Stack | 540 | 554 | 565 | 586 | 605 | 620 |
| HT angle | 70.2 | 71 | 71.2 | 71.2 | 71.75 | 72 |
| ST angle | 74.25 | 73.75 | 73.5 | 73.25 | 72.75 | 72.5 |
| CS length | 432 | 432 | 432 | 432 | 432 | 432 |
| ST length | 459 | 479 | 494 | 514 | 534 | 554 |
| BB Drop | 78 | 78 | 76 | 76 | 74 | 74 |
| Fork Offset | 52 | 50 | 50 | 50 | 50 | 50 |
| Wheelbase | 1023 | 1019 | 1031 | 1045 | 1053 | 1061 |
Handlebar Geometry:
| Size (c-c hoods) | Reach | Drop | C-C Drops | Flare | Sweep | Stem angle |
| Adventure 420×90 | 67.5 | 122 | 480 | 22ᵒ | 11ᵒ | 6ᵒ |
| Adventure 440×100 | 67.5 | 122 | 500 | 22ᵒ | 11ᵒ | 6ᵒ |
| Race 415×105 | 80 | 129 | 480 | 23ᵒ | 13ᵒ | 10ᵒ |
| Race 435×115 | 80 | 129 | 500 | 23ᵒ | 13ᵒ | 10ᵒ |
Learn more at the Bossi Bicycles Website