Mount Base Comparison

BUP Labs makes a number of different mount options from generic mounts to specific mounts for saddle brands with built-in accessory connections. How these will fit a particular saddle varies. Use this page as a guide to help determine the fit on your saddle and available space for saddlebags, etc..

Need help choosing?

Find the compatible mount and mount arm for your device and setup

Saddle Mounts
Anatra Universal Mount™	Oca Universal Mount™

7.5 cm / 3 in of space between the clamp point center and device mount arm Clamps to rear rails. Intended for traditional street saddles	5.7 cm / 2.25 in of space between the clamp point center and device mount arm Clamps to bottom rails. Intended for saddles with a wide 'Y' shaped rear bottom rail


Direct Mount for Fizik	Direct Mount for Shimano

2.5 cm / 1 in of space between the slot opening and device mount arm For Fizik saddles with a built-in ICS slot	4.1 cm / 1.6125 in of space between the first mount screw and device mount arm For Shimano saddles with threaded inserts for accessories


Direct Mount for Specialized	Direct Mount for Trek

2.2 cm / 0.875 in of space between the mount screw and device mount arm For Specialized SWAT equipped saddles with threaded inserts	1.9 cm / 0.75 in of space between the mount screw and device mount arm For Trek / Bontrager Blendr equipped saddles with threaded inserts


Direct Mount for Syncros

2.5 cm / 1.0 in of space between the first mount screw and device mount arm For Syncros saddles with threaded inserts for accessories

Bike Racks
Direct Mount for Topeak Beamrack MX™	Standard Bike Rack Universal Mount™

Positions the Varia top with the top of the OEM reflector Replaces the OEM reflector with a Varia quarter-turn mount	2.5 cm / 1.0 in of space between the mount arm screw and the bike rack accessory plate Clamps to standard bike rack accessory plates with 50mm (2 in) wide holes.