ProductM holds a non-exclusive licensing contract with Schwinn for the Critical Geometry Frame bicycle suspension. If you are interested in obtaining more information about the CGF bicycle suspension has please contact:
Mark McJunkin mark@productm.com
817 West Peachtree Street Suite A115 Atlanta, Georgia 30308
tel: 404.961.7207 fax: 404.961.7201
Home | Why It's Better | See How It Works | Gallery | Contact
ProductMCycles.com - The Critical Geometry Frame. A revolutionary bicycle suspension. Designed by ProductM. US Patent Number 5,553,880. ©2006 Product M. All Rights Reserved.