b) B C A B 1706 B C A B 2008 - B 2608 - B 2615 - B 3515 B 1706 mm (inch) B 2008 / B 2608 mm (inch) B 2615 / B 3515 mm (inch) A 334 (13 1/8) 390 (15 3/8) 467 (18 3/8) B 457 (18) 515 (20 9/32) 570 (22 7/16) C 599 (23 9/16) 640 (25 3/16) 690 (27 3/16)