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Optional accessories:

RDH L28 (not included):

 With some frames and cassettes with 

especially big sprockets, the clearance between the upper 
pulley and the bigger sprockets can be reduced to the point of 
impair the shifting performance on the lower gears. If you are 
experiencing performance issues on the lower gears while using 
your OSPW

+

, we recommend replacing the original bracket axle 

unit of your derailleur with Ridea’s RDH L28 bracket axle unit to 
improve clearance.

2

nd 

Edition February 2019 

RIDEA GROUP Limited

@CyclingRidea

www.rideabikes.com
service@rideabikes.com

TEL: +886 4 7715639

FAX: +886 4 7720539

Installation Manual

Rear Derailleur Cage (MD2 C48)

SHIMANO XTR M986 / XT M786 / SLX M675 10sp

 

OSPW

+

OverSized Pulley Wheel System 

+

 

Turn the derailleur body clockwise and the OSPW

counterclockwise to return the derailleur to its resting 

position. Please note turning directions to avoid any damage.

12

Reinstall the rubber ring to its original position.Reinstall the P-Cover 
back to its place (press down to their original position the Cam 
Unit and the Stabilizer Unit in case they impede placing the 
P-Cover back) and use the 3 bolts to secure it (1-1.5 N

.

m)

11

Use 4mm hex wrench to tight both 
pieces together (3.5-5.4 N

.

m). Hold 

down the Cam Unit and the Stabilizer 
Unit during the process so they hold 
their position.

10

Reinstall the pulley cage stop screw 
(1 N

.

m).

13

(Fix the limit screw)

Congratulations, your MD2 C48 
OSPW

+

 system is now installed!

14

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