ONE/PIECE CRANK 5 1/2" (140MM) CHROME.

Size:
The crank arm length is 5 1/2" inches/140mm. This measurement refers to the length of the crank arm, which is the portion of the crankset that attaches to the bottom bracket spindle.
Thread:
The crankset has a thread specification of 24 TPI (Threads Per Inch). This specification is crucial for compatibility with the bottom bracket and ensures proper installation.
Pedals Compatible:
The crankset is compatible with pedals that have a 1/2 inch thread. Pedals attach to the crank arms via threading, and the 1/2 inch specification denotes the diameter of the pedal thread.
Material:
Constructed from steel, which offers durability and strength, making it suitable for enduring the stresses of cycling.
Style:
The style of the crankset is square twisted, which refers to the surface finish. A twist finish enhances the appearance of the crankset.
Color:
The crankset comes in chrome color. Chrome plating provides corrosion resistance and adds a shiny, reflective finish to the crank arms, enhancing the visual appeal of the bicycle.

507 BLOCK PVC PEDALS 1/2.

Size: The pedal thread size is 1/2 inch. This specification refers to the diameter and threading of the pedal spindle, ensuring compatibility with cranksets that have corresponding threading.
Style: These pedals are of the block pedal style. Block pedals typically feature a flat, broad surface area for the rider's foot to rest on. This style provides stability and support, particularly for casual or urban cycling.
Material: Constructed from synthetic rubber, these pedals offer a balance of durability, grip, and comfort. Synthetic rubber materials are often chosen for their resilience against wear and tear while providing adequate traction for the rider's footwear.
Bearing: The pedals are equipped with bearings. Bearings are crucial components that facilitate smooth rotation of the pedal spindle, reducing friction and enhancing pedal efficiency. The presence of bearings contributes to a smoother and more effortless pedaling experience.

Set of: This set includes 9 pieces, which has various components necessary for installing and securing the bottom bracket assembly onto the bicycle frame.
Ball Retainer: The ball retainer has a size of 5/16 x 9. This specification refers to the diameter and the number of balls within the retainer. The ball retainer holds the ball bearings in place within the bottom bracket, facilitating smooth rotation of the crankset.
Shell: The shell diameter is 68mm. This measurement indicates the diameter of the bottom bracket shell, which is the part of the bicycle frame into which the bottom bracket is installed. A standard shell diameter ensures compatibility with a wide range of bicycle frames.
Interface: The bottom bracket has an interface with 24 threads per inch (tpi). This specification is essential for compatibility with the corresponding threading on the bicycle frame. It ensures a secure and stable connection between the bottom bracket and the frame.
Cup Type: The cup type is Press Fit 51mm. This indicates the type of cups used to secure the bottom bracket bearings within the bottom bracket shell of the bicycle frame. Press-fit cups are pressed into the frame rather than threaded, providing a secure fit.
Material: Constructed from steel, which offers durability and strength, ensuring the bottom bracket assembly can withstand the forces exerted during cycling.