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Frame - Base, Bearings, Hdwr. and Van Seat Post Assembly

Assembly Part Notes

Note Code Definition
A After 3/25/13 quality improvement was made to Pronto M51 Base Frame Assembly containing "SZ" in the serial # (ie. 13SZXXXXXX). The Seat Post Screw was changed from 3/8"-16 x 2" to 1/2-13 x 2-1/4". Base Frames with "SZ" in the serial number Before 3/26/13
A1 and all Base Frames w/o "SZ" in the serial number use the 3/8"-16 x 2" hole size configuration.When replacing a Base Frame Assembly After 3/25/13 and contains "SZ" in the serial number, a new Seat Post item #11 and Mounting Screw item #6 must be order.
B Includes items 2-6. Although included in frame hardware kit, item 6 (Screw) is only used for Base Frames with "SZ" in the serial number Before 3/26/13 and all Base Frames w/o "SZ" in the serial number to accommodate a 3/8" diameter hole.
C Includes items 2-5 and 10.
D Effective 10/05/06, the Seat Pivot Post has been updated to give the seat the capability to lock in a 90 degree position from straight either right or left.
E Used for Base Frames with "SZ" in the serial number Before 3/26/13 and all Base Frames w/o "SZ" in the serial number to accommodate a 3/8" diameter hole.
F Includes items 2-7
G Used After 3/25/13 to accommodate 1/2" diameter hole in a Base Frame Assembly containing "SZ" in the serial # (ie. 13SZXXXXXX). Includes items 13 and 14. Individual components are not saleable.