Carbon downhill frame prototype


Description

Krutor Zam Pro is full-carbon downhill frame of single-pivot construction, with rear frame above the chain. The frame is based on a thick-wall carbon tube of elliptical shape, which holds the bottom bracket and the main pivot. The front half of the tube is hided in shaped carbon monocoque, fluently joining the head and seat tube. The rear frame is laminated as on piece including the bridge and is equipped with massive aluminium endings for main pivot and rear wheel axle. The dumper goes from aproximately 1/3 of the rear frame to the seat-part. The fixed pivot of the damper is joined to the main pivot with a pair of linear carbon fibre links which significantly decreases the tensions in the main frame.

Equipment
  • rear thru-axle ø12 mm
  • 160 mm rear brake disc mounting standard
  • saddle tube sleeve
  • flexible mechanical stops for double-crown fork
  • bowdens (rear brake + shifter) guided inside main and rear frame
Notices
  • despite previous expectations, we're not going to mass-produce this frame
  • if you have any questions about the Zam Pro frame, please contact Bolek Samek
Technical data
Travel230 mm
Leverage ratio1:2,9
Head tube angle66º
Seat tube angle63º
Recommended damper pitch230 mm
Head tube1 1/8" × 116 mm
Complete bike (Bohosudov 2005)