700 x 52c
Aesthetic bags mountings already integrated into the frame
Gravel-style electronics: 1x12v, 1x13v, Di2, AXS, or Campagnolo Wireless; single chainring, max. 48 teeth
Comfort
Not planned
Gravel
Track, clay, light gravel
The Chiru Vagus:i is a titanium gravel frame designed for riders who prioritize fun, performance, and versatility on all types of trails.
Born from Chiru’s adventurous DNA, the Vagus:i has evolved to offer a sportier and more modern gravel experience. Now featuring 100% internal cable routing, a subtly refined geometry, and a design and tube shapes that significantly lighten the frame. Greater efficiency, stability, and comfort, so you can cover mile after mile at a steady pace, whether on the road or on trails.
The Vagus:i is just as at home on a fast gravel ride with friends as it is on a long day exploring new horizons.
Surfaces: road, track, clay, gravel, and rolling trails.
Chiru Vagus:i, a gravel bike that adapts to your terrain
Designed with a wide range of build options in mind, the Vagus:i accommodates various fork and tire configurations to tailor its performance to your riding style.
Equipped with the 400mm-length fork, it prioritizes efficiency, precision, and responsiveness on fast gravel trails, while the #425W fork lets you venture onto rougher terrain while maintaining the comfort and control that are the hallmarks of Chiru.
The Vagus:i lets you choose your playground without having to choose between performance and comfort.
The Chiru gravel bike to take you further
The Vagus:i brings together the essence of Chiru’s expertise in a design that is fast, comfortable, and durable.
Its angles and geometry provide stability and precise handling, while the rear triangle is designed to offer comfort and pedaling efficiency.
Chiru’s unique forming process reinforces the stiffness of key points in the frame and contributes to efficient power transfer and precise handling.
The down tube helps strike a balance between performance and comfort, while the optional #400T titanium fork further enhances vibration damping and handling precision.
The result: a gravel bike that can be fast when the terrain allows, comfortable as the kilometers pile up, and capable of taking you far beyond the road.
CHIRU VAGUS:i — Gravel biking within your reach.
The Chiru Vagus:i is a titanium gravel frame designed for riders who prioritize fun, performance, and versatility on all types of trails.
Born from Chiru’s adventurous DNA, the Vagus:i has evolved to offer a sportier and more modern gravel experience. Now featuring 100% internal cable routing, a subtly refined geometry, and a design and tube shapes that significantly lighten the frame. Greater efficiency, stability, and comfort, so you can cover mile after mile at a steady pace, whether on the road or on trails.
The Vagus:i is just as at home on a fast gravel ride with friends as it is on a long day exploring new horizons.
Surfaces: road, track, clay, gravel, and rolling trails.
Chiru Vagus:i, a gravel bike that adapts to your terrain
Designed with a wide range of build options in mind, the Vagus:i accommodates various fork and tire configurations to tailor its performance to your riding style.
Equipped with the 400mm-length fork, it prioritizes efficiency, precision, and responsiveness on fast gravel trails, while the #425W fork lets you venture onto rougher terrain while maintaining the comfort and control that are the hallmarks of Chiru.
The Vagus:i lets you choose your playground without having to choose between performance and comfort.
The Chiru gravel bike to take you further
The Vagus:i brings together the essence of Chiru's expertise in a design that is fast, comfortable, and durable.
Its angles and geometry provide stability and precise handling, while the rear triangle is designed to offer comfort and pedaling efficiency.
Chiru’s unique forming process reinforces the stiffness of key points in the frame and contributes to efficient power transfer and precise handling.
The down tube helps strike a balance between performance and comfort, while the optional #400T titanium fork further enhances vibration damping and handling precision.
The result: a gravel bike that can be fast when the terrain allows, comfortable as the kilometers pile up, and capable of taking you far beyond the road.
CHIRU VAGUS:i — Gravel biking within your reach.
| Material | Titanium 3Al.2.5V, grade 9 |
| Finish | Brushed, Logo laser engraved |
| Tire clearance | 700 x 52c |
| Transmission compatibility | Single-chainring and electronic only: T-type SRAM AXS XPLR 13-speed Shimano GRX Di2 1x12-speed Campagnolo RECORD and SUPER RECORD X 1x13-speed single-chainring mini 42T/ max 48T (chainline 47.5 mm) |
| Crankset Compatibility | Shimano GRX 42-48T max SRAM WIDE 42-48T max for 6mm-offset chainring (chainline 47.5). 38-50T with 4mm-offset chainring Campagnolo RECORD X WRL 42-48T max |
| Bottom bracket compatibility | T47 x 85.5 mm (internal bearing) |
| Through axis | Rear: 142x12 mm |
| Mounting points | 2 bottle cages (2x750 ml) and a horizontal tube bag |
| Head tube | Outer diameter of the sleeve: 56 mm; IS standard 52/52 mm; bearing outer diameter: 52 mm x 45 deg. (insertion depth: 8.7 mm). Compatible with full-integration cockpit covers from RITCHEY, TOKEN, BLK TEC, DEDA, FSA, ENVE, Wolf Tooth IS52 internal aero, and Chris King Aeroset. |
| Rear brake mount | Flat mount 160 mm |
| Routing | Internal routing for derailleur Internal routing for rear and front brake hoses |
| Seat post | Diameter 27.2 mm |
| Seat tube clamp | Diameter 31.8 mm |
| Accessories included |
|
| Material | Carbon |
| Finish | Mat clear varnish |
| Tire clearance | 700c x 50c |
| Through axis | 100x12 mm x p1.5 |
| Mounting points |
|
| Pivot | tapered 1" 1/8–1.5", Dia. 39.8, L: 350 mm |
| Routing | Internal for front brake hose (outlet in pivot) |
| Brake mount | Flat mount 160 or 180 mm |
| Length and offset | 395 x 55 mm |
| Weight | 545 g |
| Accessories included |
|
| Material | Carbon |
| Finish | Mat clear varnish |
| Tire clearance | 700cx60c |
| Through axis | 100 x 12 mm x p1.5 |
| Mounting points |
|
| Pivot | tapered 1" 1/8-1.5", Dia39.8; L : 350 mm |
| Routing | Internal to leg for front brake hose or internal + exit in pivot. Internal for dynamo cable |
| Brake mount | Flat mount 160 or 180 mm |
| Length and offset | 415 x 49 mm or 425 x 54 mm (reversible insert) |
| Weight | 520 g |
| Accessories included |
|
| Material | Titanium |
| Finish | Hand-brushed, laser-engraved logo |
| Tire clearance | 700cx2.35" (60 mm) & 650bx2.4" |
| Through axis | 100x12 mm x p1.5 |
| Mounting points |
|
| Pivot | Tapered 1" 1/8-1.5", L: 290 mm, diam. int. 25 mm |
| Routing | Internal for front brake hose Internal for dynamo cable |
| Brake mount | Flat mount 160 or 180 mm |
| Length and offset | 407 x 50 mm |
| Weight | 705 g |
| Accessories included |
|
| Type / Cage material | Internal bearing / Aluminum |
| Compatible model | All models with a case width of 68 mm |
| Compatible crankset | Shimano 24 mm axle crankset |
| Bearing | ABEC-3 / Titanium nitride-coated bearing cage |
| Spacer | Aluminum, for a housing width of 68 mm |
| Clamping crown | 16 notches / dia. 48.5 |
| Mounting tool | Park Tool BBT-27.3 |
| Color | Black |
| Material | Aluminum |
| Compatible model | All Chiru ranges after 2021 except Kunlun and Savage |
| Compatible derailleur | All types of derailleur: Sram, Shimano, Campagnolo, Rotor, Microshift |
| Axle compatibility | M12x1.0 |
| Color | Black |
| Material | Titanium 3Al/2.5V |
| Accessories | Titanium cradle + titanium screws |
| Length | 330 mm |
| Offset | 13 mm |
| Diameter | 27.2 mm |
| Saddle rail compatibility | 7 mm round or 7x10 mm carbon rail |
| Weight | 210 g |
| User weight limit | 100 kg |
| Material | Titanium 3Al/2.5V |
| Accessory | Titanium cradle + titanium screws |
| Length | 380 mm |
| Offset | 13 mm |
| Diameter | 27.2 mm |
| Saddle rail compatibility | 7 mm round or 7x10 mm carbon rail |
| Weight | 230 g |
| User weight limit | 100 kg |
| Body / screws material | Titanium 3Al/2.5V and 6Al/4V |
| Length | 60, 70, 80, 90, 100, 110mm |
| Angle | +/-5 Deg |
| Pivot clamping height | 48 mm |
| Handlebar clamping diameter | 31.8 mm |
| Width of handlebar clamping area | 50 mm |
| Finish | Hand-brushed, laser-engraved logo |
| Weight | 135 g |
| Material | Titanium 3Al/2.5V, Lazer soda |
| Adjustment range position | 25 mm |
| Bottle capacity | 600 to 800 ml |
| Fasteners | 2 x M5x10 Ti, Torx25 socket |
| Handling | Easy entry and exit |
| Maintenance | Secure, deformation-adjustable can holder |
| Finish | Sandblasting |
| Weight | 34 g |
| Size | XS | S | M | L | XL |
|---|---|---|---|---|---|
| TT (mm) | 525 | 540 | 560 | 575 | 595 |
| S (mm) | 450 | 475 | 500 | 520 | 540 |
| RC (mm) | 430 | 430 | 430 | 430 | 430 |
| WB (mm) | 1020 | 1023 | 1050 | 1061 | 1072 |
| BB (mm) | 75 | 75 | 73 | 73 | 73 |
| HT (mm) | 129 | 144 | 168 | 189 | 209 |
| SA (deg.) | 74 | 74 | 74 | 73.5 | 73.5 |
| HA (deg.) | 69.5 | 70.5 | 70.5 | 70.5 | 71 |
| AC (mm) | 407 | 407 | 407 | 407 | 407 |
| O (mm) | 50 | 50 | 50 | 50 | 50 |
| ST (mm) | 557 | 575 | 597 | 616 | 637 |
| R (mm) | 365 | 375 | 389 | 393 | 406 |
| Rider (cm) | Inseam (cm) | Frame |
|---|---|---|
| 155-165 | - | XS |
| 163-172 | - | S |
| 170-180 | - | M |
| 178-190 | - | L |
| 188-200 | - | XL |
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