Forward 4.0 Frame

For the fourth version of his frame, Jeff wanted his frame to have a higher BB height of 11.8”, so he would not hang up on grinds, the chain stay length should be a little shorter with 13.5”center and the rear end should be wide enough to fit 2.3” tires. Further we added a Top Tube Gusset with a debossed MK logo and a Down Tube Gusset with a “The Level Below” logo.

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“I remember being blown away when I was asked If I wanted to design my own signature frame.

I couldn’t even believe it, and the frame turned out amazing. The modifications I made this year to the geometry and graphics turned out better than I ever could have hoped.”

Jeff Klugiewicz

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FORWARD FRAME SPECS
MATERIAL Full 4130 chromoly Sanko Japanese tubing BOTTOM BRACKET Heat-treated Mid Size BB
LENGHTS 20.5”, 21.0”, 21.2” DROPOUTS Heat-treated Laser cut, 5mm, 4130 cr-mo, 14mm slots
2mm sink cuts on inside. Angled welded on caps on SS & CS.
TT ø 33.0mm x 1.1t*0.8t*1.1t Heat-treated
DT ø 34.9mm x 2.0t*1.2t*0.9t Heat-treated CHAINSTAYLENGTH 13,5” – middle of dropout
SS ø 19.0mm x 1.0* Heat-treated, Tapered to 16mm BB HEIGHT 11.8″
CS ø 19.0mm x 1.2* Heat-treated Tapered to 16mm U-BRAKE Rem. U-brake mounts and brake cable guides
SEAT TUBE Single butt (1.5t*0.9t) Heat-treated. Angle: 71°, 8.9” WEIGHT 2.10 Kilograms / 4.63lbs for 21.2”
HEAD TUBE Heat-treated – Int. Headset, rem. Gyro tabs COLORS Matt Black, Clearcoat Blue, Clearcoat Red, Shining Raw, Chrome
Frames Overview