The Antenore is a tribute to Antenore Belletti, Stelio’s father, as well as the rich history Stelbel has constructing stainless steel frame, and was chosen to pay tribute to the best teacher that Stelio could have hoped for. Among the first to experiment with welding special metal alloys, he passed his knowledge onto his son, who ingeniously applied it to bicycle frame building.

The Antenore Disc is the latest evolution of the family of frames made from XCr stainless steel tubing, a very precious and difficult to work steel, but capable of incredible performance.  Flat mount disc brakes proved to be a perfect match with this tubing and the adoption of thru axles has contributed to the reduction of lateral flex. These features combined really enhance the unique and exceptional ride quality of the Antenore Disc.

The non-conical oval section chainstays are a distinctive feature of modern Stelbel frames, and the Antenore is no exception. Our custom designed chainstays have a 30x20mm oval cross section and compliment custom designed  Thru Axle rear dropouts, made out of stainless steel and CNC machined from a single block.

The 46mm head tube is also CNC machined in Aisi 316 special alloy. The 44mm internal diameter can accommodate a various external headsets (Chris King, Columbus or Cane Creek available) and allows the installation of a carbon fiber fork with 1-⅛ – 1-½”  or a 1 “¼ steerer. We can supply forks from Columbus Tubi, Enve, 3T and WR Compositi.

Engraved and drilled, the bottom bracket shell is also made of AISI 304 stainless steel, and has BSA threading (1,370 x 24 tpi), ensuring an easy assembly and maintenance.

The cable routing is partially internal. The shifter cable tension can be adjusted thanks to the stainless steel down tube cable guides equipped with inline adjusters. The bottom bracket shell is equipped with stainless steel external cable guides, and the right chain-stay is outfitted with internal rear derailleur cable routing, a typical feature of modern Stelbel road frames. The rear hydraulic brake cable is internally routed through the down tube and then again inside the non-drive chainstay.

The frame features the “Stelbel” name engraved on the head tube, bottom bracket shell and brake bridge.

The paint scheme leaves half of the frame naked, highlighting key portions of the satin finished stainless steel. Each Stelbel frame is unique, exclusively made to measure and comes with custom geometry. You can send us a professional bike fit report or alternatively follow our instructions for completing our measurement form.

The geometry is completely made-to-order and the frame can adapted for mechanical or electronic groupsets.

  • Front Spacing100mm
  • Rear Spacing142mm
  • Bottom BracketBSA ( 1,370x24tpi )
  • Seatpost Diameter31,6mm
  • Seatpost ClampIntegrated
  • Front Derailleur MountBraze-on
  • Headtube46mm
  • ForkColumbus Futura Disc
  • Fork Rake45mm
  • Tire Clearance30c
Columbus XCR Stainless Steel
BSABottom Bracket
1”1/2Steerer Tube
12mm e-ThruThru Axles
30cTyre Clearance
EPS/Di2Upon Request
1740gFrame Weight

Each and every Stelbel frame is made to measure and designed with a custom geometry. After an order is confirmed and a deposit payment placed, the frame design will start based on the available information and documents (Measurements form, Bike-fit report, …). Customer will be interviewed to better understand riding style, wishes, goals and expectations for the new bike. A frame’s CAD drawing will be shared to be commented, analyzed, refined and eventually approved before manufacturing can start.

How to order

You can place an order directly with us via or from one of our official retailer partners. An order is confirmed once a deposit payment is received via wire transfer or Paypal. Shortly after, a document providing an overview of the project details and a cad drawing of the frame will be shared for your approval. Pictures of the finished frame/bike will be shared with you prior to requesting the final balance payment. In case you’re considering coming to visit us in Bergamo to discuss the details of a project face to face, or to pick up your new frame/bike, you will be made very welcome by our team.