True_Fit Geometry · For Brands

Level up your
Geometry Charts!

Present your bike geometries with interactive and more realistic values that riders can actually compare and feel. We calculate the True_Fit of your bikes with the Points of Contact at 25% sag with real, three-dimensional geometry computation.

True_Fit Packages

Choose your tier

PACKAGE_00 · STATIC
  • Base Geometry + True_Fit chart
  • All frame sizes in one chart
  • Metric & Imperial toggle
  • PDF or interactive embed
  • Per model / per size pricing
PACKAGE_01 · INTERACTIVE
  • Everything in Static
  • Geometry editor driven by selected size
  • Rider sits on the bike — fit updates automatically
  • True_Fit geometry overlay
  • No manual sliders — automatic fit
PACKAGE_02 · ADVANCED
  • Everything in Interactive
  • Full optimisation with target body angles
  • Live BDC rider panel, dynamic sag / feet / cleat sliders
  • Stem & crank parts, annotation layer controls
  • Geometry hardcoded — find best fit with sliders
  • Dedicated hosted instance
PACKAGE_02 · ADVANCED

True_Fit Advanced

Full optimisation. Live BDC rider panel, dynamic sag / feet / cleat sliders, stem & crank parts, annotation layer controls. Geometry is hardcoded by you and the users can find their best fit with the sliders. We provide target body angles based on the bike category.

ParameterM
Wheelsize29"
max. Travel (front/rear)150/140 mm
Fork_A2C551 mm
Headtube_Length120 mm
Fork_Offset44 mm
Seattube_Length420 mm
Crank_Length170 mm
Bar_Reach488 mm
Bar_Stack692 mm
Bar_Toptube_Length635 mm
Ergonomy_Angle°65.8°
Wheelbase1214 mm
BB-Drop [front]35 mm
BB-Drop [rear]35 mm
BB-Height409 mm
Rear_Center440 mm
Seattube_Angle77.2°
Headtube_Angle64.8°
Trail49 mm
Knee ↓70°/↑145°↓75° ↑180°
Hip Angle/52°52°
Arm Angle/75°75°
byBikeSPEZL· True_Fit

Suspension

25%

Feet & Cleat

12°
75mm

Crank

0.0°
PACKAGE_01 · INTERACTIVE

Interactive True_Fit Chart

Geometry editor driven by the selected size. Rider sits on the bike — fit updates automatically. No manual sliders for custom fit.

Body Height
178cm
ParameterM
Wheelsize29"
max. Travel (front/rear)150/140 mm
Fork_A2C551 mm
Headtube_Length120 mm
Fork_Offset44 mm
Seattube_Length420 mm
Crank_Length170 mm
Bar_Reach553 mm
Bar_Stack712 mm
Bar_Toptube_Length635 mm
Ergonomy_Angle°65.8°
Wheelbase1255 mm
BB-Drop [front]35 mm
BB-Drop [rear]35 mm
BB-Height340 mm
Rear_Center442 mm
Seattube_Angle77.5°
Headtube_Angle64.3°
Trail112 mm
byBikeSPEZL· True_Fit
PACKAGE_00 · STATIC

Base Geometry Chart

Base Geometry and True_Fit — toggle between two complete views. Switch to preview to see the bike drawn from the geometry. Delivered as a branded PDF or embed.

ParameterM
Wheelsize29"
max. Travel (front/rear)150/140 mm
Fork_A2C551 mm
Headtube_Length120 mm
Fork_Offset44 mm
Seattube_Length420 mm
Crank_Length170 mm
Bar_Reach553 mm
Bar_Stack712 mm
Bar_Toptube_Length635 mm
Ergonomy_Angle°65.8°
Wheelbase1255 mm
BB-Drop [front]35 mm
BB-Drop [rear]35 mm
BB-Height340 mm
Rear_Center442 mm
Seattube_Angle77.5°
Headtube_Angle64.3°
Trail112 mm
byBikeSPEZL· True_Fit

Let's Talk

Tell us about your brand and the package you're interested in — we'll respond within 2 business days.

Transparent pricing · No minimum commitment on PACKAGE_00