The Lower part adapter attaches to Combo Mount
GoPro Shimano Sport Camera and a light adapter can be loaded on the Lower part adapter
The adapter line-up

CATEYE(GP-CATHL2),
LEZYNE(GP-LEZ2 or GP-LEZ4)
MOON(GP-MOON2),
NiteRider(GP-Nite2),
CYGO LITE(GP-CYGO2),
SERFAS(GP-SERFAS),
Flashlight(GP-Light3 or GP-Light4)
Garmin Varia (GP-GMOS)
SONY ActionCam & DRIFT,ION,RICOH,(GP-CN-A),
Kodak(GP-KO)

Fitness and the compatibility
Please see a home page of a manufacturer (support page).
There is a button of the Gogle translation in the upper right.

An exclusive mount
It's possible to install only the handle of the picture and a stem.
Please ask whether the new or old type is same in the handle (STEM) manufacturer.
It can't be loaded on fake and the one which changed specifications.

Something by which this information is 2016

#There is a model who isn't selling it in amazon, too.

• for wahoo Fitness GPS Bike Computer ELEMNT or ELMENT BOLT
• Corresponding Clamp size 31.8mm and 25.4 to 26.0mm(Rubber shim)
• The devices ready to use (Cameras) GoPro(HERO series) or Shimano Sport Camera or REC-MOUNTS(TM) Aluminium Light adapter
• IN THE Box, Base Mount 1pc ,Lower part adapter(GP-K400A) 1pc , Rubber shim 1pc
• Base Materia, 6061 T6 Aluminium # Please check details of the specification on the manufacturer page

for wahoo Fitness GPS Bike Computer ELEMNT or ELMENT BOLTREC-MOUNTS