Main navigation

  • Home
  • BikeCAD Pro
  • BikeCAD Online (Free)
  • Design Archive
  • User Guide
  • Help/ FAQ
  • Forum
  • Glossary
  • Cycling Dingbats
  • Upload a BCAD file
  • Release Notes
  • User Map
  • BikeCAD Pro Owners
  • Contact

User account menu

  • Sign up
  • Log in
Home
Bicycle Design Software

Fork Travel and downtube clearance

jrmelanson
Framebuilder
By jrmelanson | 4:52 PM EDT, Mon October 04, 2021
BikeCAD Pro How To Forum

Is there a quick check available to ensure that the wheel/tire combo does not contact the downtube under full fork compression?

Brent
Profile picture for user Brent
www.bikecad.ca
Ottawa, ON Canada

Brent

4 years 6 months ago

Permalink

Investigating front wheel and down tube clearance

You can use the lock frame tool to fix the frame while changing the fork sag to be equal to the overall travel of the fork. I did this and then used the morph tool to generate this animated GIF.

Fork compression

You can also turn on the animation option to show the fork moving through the full length of its stroke. In this case, the frame will remain in its current position and the wheel will slide upward with the fork legs.

  • Log in or register to post comments
Brent
Profile picture for user Brent
www.bikecad.ca
Ottawa, ON Canada

Brent

4 years 6 months ago

Permalink

In reply to Investigating front wheel and down tube clearance by Brent

Toe overlap dimension

Since a question was asked about this on Instagram, I'll mention here that you can also display the ISO 4210-2: 4.13.2.2 toe clearance dimension as shown below.

Toe overlap

  • Log in or register to post comments
jrmelanson
Framebuilder

jrmelanson

4 years 6 months ago

Permalink

In reply to Toe overlap dimension by Brent

Wonderful. Thank you!

Wonderful. Thank you!

  • Log in or register to post comments
  • Log in or register to post comments

Copyright © 1998 - 2026 The Bicycle Forest Inc. - All rights reserved

Drupal theme by Alaa Haddad