SRB XRS01 Nordic Cross Skate Rollerskis

From New Moon:
A larger wheel, pnuematic air filled for rough pavement or crushed limestone paths. sturdy design, German made. Open up your off season possibilities.

From the Manufacturer:
Rollerski made for skate technique
Incl. locking device on all wheels
Frame made out of aluminum incl. patented flex technology
Wheelbase: 610mm
Wheels: 150mm pneumatic wheels with car valve and SRB Aluminum rim
Bearings: FAG 608RS
Weight (one rollerski): ca. 1500gr
Standard shaft up to 90kg and stiff version up to 120kg body weight