MBI 3peed Internal gear hub transmission for bicycles

RGF391E 3 speed Internal Gear Hub

Model: RGF391E

Shifting Type: Twist Type

Ratio of Range 191%: 1 speed 100% 2 speed 144% 3 speed 191%

Axle Length(min/max): 140 / 191mm

Over Lock-Nut Dim(min/max): 111 / 121mm

Spoke Holes: 28H, 36H

Spoke Hole Dim: 2.7mm

Spoke hole P.C.D: 75mm

Available Sprocket Teeth: 15T, 16T, 19T

Chain Line: 43 / 45mm

Weight 950g , Material: Steel , Color :Silver

Brake Type: Roller, None, Bend(BC 1.37 R24)

RGR391

1. Internal hub gear(IHG)

MBI 3-speed hub gear doesn’t need any derailleur system, because every gear changing is performed perfectly inside the hub shell.

2. No protruding parts

The control section is safe from any external impacts, because of no protruding parts.

3. Turning transmission system

It is possible to change speeds with turning transmission system in any situation.

4. Accurate shifting gear

It performs well with its monolithic structure of wire and controller whenever it is stopped or under load as going uphill.

5. Easy to install and assemble

It is easy to install and assemble, because the number of gear parts is fewer than others.

6. Term of the quality guarantee

Free A/S for 2years.

7. The world’s first patent

Products are registered in Korea and USA / patent pending in 34 countries.