SADDLEMEN Roadsofa Carbon Fiber Heated Seat - Black - with Backrest - GL1800 '14-'17 H23-20-185BRHCT Cap 5 inches long and when

5 inches long and when you add the lug nut you have 7 inches

Bezel frame: 170mm x 96mm x 5mm    Screen Frame: 266mm x 180mm

round and hexagonal

25-2130 5 Glide Riser Set Chrome Reference #'s (if avaliable):

SADDLEMEN Roadsofa Carbon Fiber Heated Seat - Black - with Backrest - GL1800 '14-'17 H23-20-185BRHCT Cap 5 inches long and whenOur tall lumbar support and wide driver saddle supports the back and legs for superior comfort, while the streamlined nose improves the rider's reach to the ground Refined split cushion design separates the seating surface from the lumbar support, reducing tailbone and back pressure from maximum long range comfort Can be purchased with or without Drivers Back Rest which has independent adjustments for fore aft position, height and angle, and folds