You are in the 175mm Bike Trial bicycles cranks corner.
Jitsie economic cranks set is the most polivalent to adapt to any Biketrial and Trial bikes. Forged in aluminium 7075 with T6 termic treatement, that offers a high strong and resistance. Available in four different longs: 160 mm, 165 mm, 170 mm and 175 mm. For ISIS type bottom brackets. Offset 33mm. For 1.37x24tpi threat freewheels. Weight according crank long (see product details).