Prime SR1 - Page 3

This manual contains the instructions for the correct methods required to replace the bearings used on the Prime
SR1, SR1D, SR2 and SR2D hubs, as well as safety warnings and caution indicators to avoid any hazardous
situation.
Please, read first before attempting any form of repairs on your Prime hubs. Failure to follow the warnings and
instructions may result in serious injury if not followed correctly.
It is always recommended that a trained bicycle mechanic perform any maintance required on the Prime hubs to
avoid incorrect installation and prevent injury.
The use of the correct tools is required to perform any tasks on the Prime hubs, the use of incorrect tools may
damage the hubs if not correct which can lead to premature failure of the product which may void warranty.
Orientation Model Drive Side (Right) Non-Drive Side (Left) HG (Shimano®) XDR (SRAM®) NEW (Campagnolo®) Campy (Campaganolo®)
SR1
(Straight Pull - Rim Brake)
1 x 17287
(17.0mm ID x 28.0mm OD
x 7.0mm W)
1 x 6802
(15.0mm ID x 24.0mm O
D
x 5.0mm W)
SR1D
(Straight Pull - Disc Brake)
1 x 17287
(17.0mm ID x 28.0mm OD
x 7.0mm W)
1 x 6902
(15.0mm ID x 28.0mm O
D
x 7.0mm W)
SR2
(J-Bend - Rim Brake)
1 x 17287
(17.0mm ID x 28.0mm OD
x 7.0mm W)
1 x 6802
(15.0mm ID x 24.0mm O
D
x 5.0mm W)
SR2D
(J-Bend - Disc Brake)
1 x 17287
(17.0mm ID x 28.0mm OD
x 7.0mm W)
1 x 6902
(15.0mm ID x 28.0mm O
D
x 7.0mm W)
2 x 6802
(15.0mm ID x 24.0mm OD
x 5.0mm W)
2 x 15267
(15.0mm ID x 26.0mm O
D
x 7.0mm W)
Hub Shell Freehub
Bearings
2 x 15267
(15.0mm ID x 26.0mm O
D
x 7.0mm W)
2 x 6802
(15.0mm ID x 24.0mm OD
x 5.0mm W)
Rear
WARNING
When assembling or working on the any component from the Prime take care. Please, always wear protective,
gloves and goggles, regardless of whether the component is connected to the battery.
WARNING
Next guides show in detail what is required with specifications and associated information to replace the
bearings in Prime hubs. Assembly and replacement guides are also included along with the tools required for
each procedure. Please note that the guide shows reccommendations and procedures and is intended to avoid
possible errors in the process that could damage the system.
WARNING
The Prime bearing replacement manual is intended for professional mechanics.
Persons without proffestional training in the assembly of bicycles or components must not handle or
install any components on their own.
INFORMATION
ID = Internal Diameter
OD = Outer Diameter
W = Width
Please note that all measurements are in millimetres (mm)
REQUIRED BEARINGS
The below chart shows the bearings required for each of the different models of Prime Star Ratchet rear hubs along with the
dimensions for each bearing type.
3