Honey BiFröst Converter Titanium Bike Series Geometry

Here are the geometry and frame feature details for the Honey Bifröst Converter Titanium bike series.

Top tube length, inchesHead tube lengthSeat tube lengthTop tube slope, degreesSeat tube angle, degreesChainstay lengthBottom Bracket HeightFront center length, cm
20.00 4.0 11.0 36 75.5 17.9 12.0 64.0
21.00 4.0 12.0 33 74.0 17.9 12.0 64.0
21.50 4.0 13.0 30 73.5 17.9 12.1 64.0
22.00 4.0 13.5 28 73.0 17.9 12.2 64.1
22.50 4.0 14.0 26 72.5 17.9 12.3 64.2
23.00 4.5 14.5 24 72.0 17.9 12.3 64.2
23.50 4.5 15.5 22 72.0 17.9 12.3 64.7
24.00 5.0 16.5 19 72.0 17.9 12.4 65.9
25.00 5.5 17.5 16 71.5 17.9 12.5 66.8

Size-Specific Components, Men's Bikes

Frame size Stem Length & Angle Handlebar Width ** Crankarm Length Wheel size
Top tube length, inchesHead tube length
20.004.04cm, 84d760mm170mm26" & 27.5"+
21.004.05cm, 84d760mm170mm26" & 27.5"+
21.504.06cm, 84d760mm170mm26" & 27.5"+
22.00
4.07cm, 84d760mm175mm26" & 27.5"+
22.504.08cm, 84d760mm175mm26" & 27.5"+
23.004.59cm, 96d760mm175mm26" & 27.5"+
23.504.510cm, 96d760mm175mm26" & 27.5"+
24.005.010cm, 96d760mm175mm26" & 27.5"+
25.005.511cm, 96d760mm175mm26" & 27.5"+

Size-Specific Components, Women's Bikes

Frame size Stem Length & Angle Handlebar Width ** Crankarm Length Wheel size
Top tube length, inchesHead tube length
20.004.04cm, 84d760mm170mm26" & 27.5"+
21.004.04cm, 84d760mm170mm26" & 27.5"+
21.504.05cm, 84d760mm170mm26" & 27.5"+
22.00
4.06cm, 84d760mm175mm26" & 27.5"+
22.504.07cm, 96d760mm175mm26" & 27.5"+
23.004.58cm, 96d760mm175mm26" & 27.5"+
23.504.59cm, 96d760mm175mm26" & 27.5"+
24.005.010cm, 96d760mm175mm26" & 27.5"+
25.005.511cm, 96d760mm175mm26" & 27.5"+

Frame Geometry Notes

All specifications in inches and degrees except for front center and component details. Components are in centimeters.

Toe overlap:  Because the BiFrost can be ridden with dozen of tire sizes and often big winter boots, your frame may have some toe overlap.  Make sure you are comfortable with this before ordering.  Questions?  Contact the Beekeepers.

Top tube length is the 'effective' length -- this is the length measured from the intersection of the head tube and top tube, measured horizontal to the ground back to the seat tube or seat post center-line.

Bike size: Top tube length combined with head tube length are better indicators of bike fit than the classic “seat tube length.”

** Standover clearance:  We measure standover height from the ground to the midpoint of the top tube. Seat tube lengths of 13” and smaller get curved top tubes. The reason for this is to allow the seat stay bends to fit around the extremely large tire.

*** Handlebar width: For mountain bike style flat bars and riser bars we usually leave them full length during assembly. While we rarely ride bars at full width it is a better to start with bars too wide rather than too narrow.

General Geometry Notes

  • All specifications are in inches unless otherwise indicated.

  • Frame geometry optimized for use of a center mount seat post.

  • Specifications based on fat 26 x 4.6” tires.

  • "Frame reach" is not a particularly effective measurement for determining correct frame size. In fact, the term "frame reach" is deceptive, given what it's actually measures. Top tube length and frame stack are much more helpful for choosing the right bike size. We include 'frame stack' because people ask about it all the time. However, be wary of choosing a bike's size based on frame stack.

  • Specification changes occur often because of ongoing component improvements and industry standards. If you have critical measurements for your cycling enjoyment, let the Beekeepers know before placing your order.


Frame Feature Notes

  • Wheel diameter: The Honey BiFrost Titanium fits two wheel size:

    • 26”

      • Tire, maximum size: 4.8” knobby or studded fat tires

      • Tire, optimal size: 4.6” knobby

      • Note: Tires often vary in claimed measurements versus actual measured size. Rim width also affects actual tire width. Therefore, some tires will fit better than others.

    • 27.5"

      • Tire, maximum size: 3.0” knobby or studded plus tires

      • Tire, optimal size: 2.8” knobby

  • Fender mounts: None on frame or fork.

  • Rack mounts: None. However, the frame is rack and pannier worthy up for 45 lbs combined weight.

  • Two bottle mounts: One on seat tube, one on top of the down tube.

  • Decal options: Blasted or gray reflective

  • Head tube diameter: 44mm headset

  • Seat post diameter: 30.9mm optimized for dropper post but not required.

  • Front derailleur clamp diameter: 34.9mm

  • Rear axle spacing: 197mm with a 15mm thru axle

  • Frame comes with thru-axle with 6mm hex head bolt

  • Brake mount: Frame brake placement is low-mount post-mount disc

  • Cable routing: Full housing

    • Rear brake: Zip guides underside of down tube and top of chainstay. Compatible with hydraulic or mechanical brakes.

    • Front derailleur -- three options: Zip guides on down tube, Di2 internal routing, or no cable stops for a front derailleur.

    • Rear derailleur -- two options: Zip guides on down tube and chainstay or Di2 internal routing.

  • Dropper post internal routing available with an upcharge.

Rigid Fork Features

  • Whisky carbon fork, matte black

  • Fits tires up to:

    • 26” fat tire, maximum size: 5.05” knobby or studded.

    • 27.5" plus tire, maximum size: 3.0” knobby or studded plus tires.

  • Fender mounts: None.

  • Rack mounts: None. This fork is not designed for loaded panniers. Do not install a rack on this fork.

  • Brake mount: Post mount fits 160 and 180 mm rotors

  • 150mm x 15mm thru axle

  • Fork comes with thru-axle with 6mm hex head bolt.

Suspension Fork Features

  • Rock Shox Bluto RTC3 100mm travel, black

  • Fits tires up to:

    • 26” fat tire, maximum size: 4.8” knobby or studded.

    • 27.5" plus tire, maximum size: 3.0” knobby or studded plus tires.

  • Fender mounts: None.

  • Rack mounts: None. This fork is not designed for loaded panniers. Do not install a rack on this fork.

  • Brake mount: Post mount fits 160 and 180 mm rotors

  • 150mm x 15mm thru axle

  • Fork comes with thru-axle with 6mm hex head bolt.