Grade-Up Parts Series no.398
Double Aluminum Rollers (13-12mm)
Item No: 15398
★These precision aluminum components each feature integrated 12mm and 13mm rollers. ★13mm roller sections come into contact with the course fence on straights, and 12mm roller sections during corners. ★Also included are 520 ball bearings and other small parts for attachment.
Specifications are subject to change without notice.