These are the first chromoly cranks with a one piece arm-pedal boss, which completely avoids pedal boss breakage and with bend resistant. We have used the same Invest casting technology as on the 2011 signature frames and the Agua forks.
This gives the dolmen cranks a nice, smooth and clean look, but also means there is no welding on the pedal boss and makes it all-together a stronger arm and crank set and with the D shape arms and 2.5p system patented by flybikes you probably have the most advanced BMX crank set on the market.

Arms: Bend resistant D shape arms with one-piece arm-pedal boss technology.
Spindle: 22mm cromoly 4130 CNC internally-machined spindle.
Splines: 48
Spindle Bolt(s): 10×1.5mm (x1) heat-treated CNC machined spindle bolt with sink Allen hex.
Sizes: 175mm, 180mm
Drive Side Options: Right and Left
Color:  Gloss Black
Weight: 862g / 1.9lb (w/o BB)
Other Info & Details: 2.5 axle system for easy and more precise install.
- 1 piece arm-pedal boss technology.
- Bend resistant D shape arms.