
MODELS
ON/OFF - GRX
5 899 €
8.7 kg (L)
Gravel Race. Speed, sportiness, versatility.
FRAME OBVIOUS ON/OFF TITANE |
FORK OBVIOUS ON/OFF CARBONE |
DERAILLEUR SHIMANO GRX RD-RX822 1x12S |
CRANKSET SHIMANO GRX FC-RX820-1 40T |
CASSETTE SHIMANO XT M8100 10/45 12s |
CHAIN SHIMANO XT M8100 12S |
BOTTOM BRACKET SHIMANO BSA 68 mm |
SHIFTER SHIMANO GRX ST/BL-RX820 |
WHEELS OBVIOUS GR35-S 700C (622x25C) CARBON - DT350 SP HUBS – 24 SAPIM CX-RAY PROFILED SPOKES |
TYRES SCHWALBE G-ONE BITE RACEGUARD 700Cx45 |
AXLES 12x100 FRONT/ 12x142 REAR |
BRAKES SHIMANO GRX BR-RX820 + DISQUES GRX CL800 160 mm |
HANDLEBAR DEDA ELEMENTI GRAVEL 100 |
STEM DEDA ELEMENTI ZERO 100 |
HEADSET ZS44-EC44 |
SADDLE SPANK SPIKE 160 NOIR |
SEATPOST OBVIOUS CARBON 27.2 mm / RECUL 25 mm |
SEATCLAMP ALUMINIUM 31,6 mm BLACK |
ON/OFF - Frame
2 749 €
2.250 kg (L - Complete kit)
Total freedom ! Make your own assembly.
FRAME OBVIOUS ON/OFF TITANE |
FORK OBVIOUS ON/OFF CARBON GRAVEL (LUGGAGE BOSSES OPTIONAL) |
SEATPOST OBVIOUS CARBON 27.2 mm / SETBACK 25 mm |
AXLES 12x100 FRONT/ 12x142 REAR |
HEADSET ZS44-EC44 |
SEATCLAMP ALUMINIUM 31,6 mm BLACK (included) |
SUPPLIES PATTE DE DÉRAILLEUR / CLIPS DE DURITE / VIS PORTE-BIDON / MOUSSES ANTI-BRUIT |

100% adaptable titanium gravel
From the cobbles of Northern France to the passes of the Alps and forest paths, the ON/OFF titanium gravel bike goes everywhereYou'll get maximum pleasure from this genuine titanium gravel bike genuine gravel bike.
Do you want to push your limits, get away from it all or go to work with the ON/OFF ? The versatility of our gravel bike makes it the ideal companion for cyclists, bike-commuters and even bike-packers. It can be set up in any way you like, and has neither the exclusive position of a bike nor the mass of a city bike.
Five sizes are available for this ON/OFF gravel frame to suit as many riders as possible. At OBVIOUS, you can also choose a taylor-made gravel frame to ride on a bike that's adapted to your size and meets your accessorising needs. The gravel titanium frame kit is also on sale on its own , so you can have the pleasure of assembling your bike by yourself.
Frame
Description - Specifications
TI-3AL-2,5V TITANIUM BUTTED TUBES |
ROUES 700C / PNEUS 45C (47 MAXI) |
GRAVEL SPORT GEOMETRY |
INTERNAL ROUTING |
ENGRAVED GRAPHICS |
TRANSMISSION 1X12 (DOUBLE CHAINRING ON REQUEST) |
REMOVABLE DERAILLEUR HANGER |
Geometry & Dimensions
Sizing grid
Choosing your frame size
Choose your frame size according to your height and then check whether your saddle height is achievable. If not, contact us.
If you are between 2 sizes :
You can choose the smaller size if you're looking for a livelier, more playful bike. You can choose the larger size if you want a more stable, safer bike. It will, however, require a little more effort to steer.
You can also choose by comparing the length of the frame - the reach - with that of your current bike.
Finally, we can also make a frame to your own measurements.
Geometry
XS | S | M | L | XL | |
---|---|---|---|---|---|
- CYCLIST HEIGHT (cm) | 160-168 | 166-174 | 172-180 | 178-186 | 184-194 |
A SADDLE HEIGHT (mm) | 645-735 | 675-765 | 705-795 | 735-825 | 765-855 |
B STACK (mm) | 522 | 545 | 570 | 589 | 608 |
C REACH (mm) | 374 | 377 | 379 | 387 | 396 |
D SEAT TUBE LENGTH (mm) | 445 | 475 | 505 | 535 | 565 |
E TOP TUBE LENGTH (mm) | 519 | 533 | 548 | 561 | 576 |
F HEAD TUBE LENGTH (mm) | 90 | 110 | 135 | 155 | 175 |
F' HEAD TUBE + HEADSET LENGTH (mm) | 102 | 122 | 147 | 167 | 187 |
G HEAD TUBE ANGLE (°) | 70 | 71 | 71.5 | 71.5 | 71.5 |
H ANGLE DE TUBE DE SELLE (°) | 74.5 | 74 | 73.5 | 73.5 | 73.5 |
I CHAINSTAY LENGTH (mm) | 425 | 425 | 425 | 425 | 425 |
J BOTTOM BRACKET DROP (mm) | 72 | 72 | 72 | 72 | 72 |
K WHEELBASE (mm) | 1010 | 1012 | 1017 | 1032 | 1047 |
Components dimensions
XS | S | M | L | XL | |
---|---|---|---|---|---|
SPACERS (mm) | 3x5 | 3x5 | 3x5 | 3x5 | 3x5 |
STEM LENGTH (mm) | 80 | 90 | 100 | 110 | 120 |
HANDLEBAR WIDTH - CENTER AT SHIFTERS (mm) | 400 | 420 | 420 | 440 | 460 |
SEATPOST SETBACK (mm) | 25 | 25 | 25 | 25 | 25 |
CRANKS LENGTH (mm) | 170 | 170 | 170 | 175 | 175 |
Frame kit
Recommended components
WHEELS | WHEELS 700 - AXLES Ø12x100 / Ø12x142 |
TYRES | MAXI 700x47C |
DERAILLEUR | NO FRONT DERAILLEUR - CONTACT US IF NEEDED |
CRANKSET | SINGLE CHAINRING MAXI 44T |
BOTTOM BRACKET | BSA 68 mm THREADING |
DISCS | Ø 160 mm FRONT / REAR |
ROUTING | INTERNAL (DERAILLEUR / BRAKES) |
STEM | CLAMP ON FORK Ø28,6 mm |
SEATPOST | Ø 27,2 mm / L 350 mm |

ON/OFF, a gravel bike with a unique style
Defined, designed and engineered by OBVIOUS, this high-end gravel bike combines performance and comfort. We chose titanium for its unrivalled properties. Our ambition : give you maximum sensations on your titanium gravel bike !
The gravel titanium ON/OFF frame is both rigid and forgiving. It also stands out for its durability. With its raw, brushed and sandblasted finishing, this frame is the perfect base for an bike .
Make every ride a moment of pleasure with ON/OFF, the OBVIOUS titanium gravel frame!
