100% ORIGINAL ! www.grotro.com https://www.youtube.com/watch?v=iDg2iLwYzOg


https://www.youtube.com/watch?v=iDg2iLwYzOg


Made In Korea (Not China Imitation)


You can choose one of these colors  

1. CHROME

2. NIKEL

3. GOLD  < RM 199 >


The original Rotomatics® with an improved higher ratio gearing. The 18:1 ratio provides for finer tuning and greater stability. The finer gears provide smoother tuning and a higher degree of backlash elimination. This new version of the Rotomatics® uses the exact housing as the original.


Gear ratio = 18:1

Post Height = 1 1/16 in. (27mm)

Post Diameter = 15/64 in. (6mm)

Peghole Requirement = 25/64 in. (10mm)

Bushing O.D. = Hex head 9/32 in. (7.8mm)

Bushing I.D. = 1/4 in. (6.3mm)

Collar Height = 25/64 in (10mm)