This is my remix of www.thingiverse.com/thing:3349014 

Work is still in progress 

this is version 1.0, I guess i will add an improved version sooner or later

splitted it into diffrent parts for easy printing and removed the clamps.

print the parts with leters up!!

Measurements:

length total 250 mm
width is 128 mm (maybe i will make a 100mm version)
Handlebar diameter up to 35mm (maybe will add some variations)
Stem diameter up to 40mm (maybe will add some variations)

Filament material:

PLA or what you think is good ;)

Recommended printing settings:

ARM's

• layer height: 0.2
• perimeters: 4
• infil: 10% - 30 % ( I used 15%)

Connector's

• layer height: 0.1 (for better holes)  - 0.2
• perimeters: 4
• infil: 10% - 30 % ( I used 15%)

Under stem

• layer height: 0.1 (for better holes) - 0.2
• perimeters: 4
• infil: 10% - 30 % ( I used 15%)