7
When replacing any broken sealed bearings please ensure sealed
bearing correct measure and specification are used.
Rear hub
Front hub
Right side
26x17x5 (6803)
26x17x5 (6803)
Left side
26x17x5 (6803)
26x17x5 (6803)
The
XMR
hubs are easy to maintain. To do it, proceed as follows:
FRONT HUB
The front hub does not require any particular maintenance.
For any extraordinary maintenance and replacement of bearings,
follow these simple steps:
• Extract the cage chamber (B) (Fig. 1)
Once the chamber successfully removed proceed replacing the
bearings.
• Apply light pressure to the axel (C) using a plastic-edged tool:
apply pressure until the bearing has been totally removed from
its housing including the axel (Pic. 2)
• Once the first bearing has been removed, using special 17mm
diameter extractor, you can then remove the second bearing
(Pic. 2)
Once these have been replaced, proceed in fitting the new bea-
rings:
• Fit the first bearing using a plastic-edged tool: apply pressure
until the soft pad is perfectly fitted within the housing
• Insert the axel (C)
• Centre the second bearing in line with the axel and fit it using
a push bearing that is big enough to contain the axel itself (B).
• Insert the chamber on the axel (Pic. 3)
• Check that the wheel turns freely
!
Warning
Use original spare parts exclusively provided by Fac Michelin S.r.l.
Any modification or alteration (also graphic) of the product with
non-original spare parts or spare parts not delivered directly
by Fac Michelin S.r.l., involves the expiration of the guarantee.
REAR HUB
The rear hub requires cleaning and lubrication of the ratchets in
the freewheel body.
For any maintenance:
• Insert allen wrentch 12mm (M) on right side of the hub (Pic. 4).
• Using allen wrentch 12mm (M), unscrew left stop (O)
Extract the axel of rear hub with the freehub body (E). if necessary
at this point you can:
• Change the bearings (S).
• Grease the cogs with low density grease (C).
• Extract from the axel the freehub body with the relative spacer
(Z) continue the cleaning process of hub.
Warning: the bearings
of the freehub body and no replaceable.
• Re-fit the axel inside hub body with the spacer (Z). Take care to
position of the pawls (Pic. 5)
• Insert allen wrentch 12mm (M) on right side of the hub (Pic. 6).
• Stopping left stop (O) with a allen wrentch 12mm (M) locking at
15 Nm (Pic. 6)
• If necessary adjust the hub by working on the ring (H) (Pic. 6):
• Unlock the grub screw (I) with a allen wrentch (L) (Pic. 6).
• Turn the ring
clockwise
to drop the sliding, and in
counter-
clockwise
to rise the sliding.
• Lock the grub screw (I) (Pic. 6).
• Check the sliding of the wheel.
Please check that the hub is correctly tightened and closed, fai-
lure to do so could lead to a serious or fatal accident.
!
Warning
Use original spare parts exclusively provided by Fac Michelin S.r.l.
Any modification or alteration (also graphic) of the product with
non-original spare parts or spare parts not delivered directly
by Fac Michelin S.r.l., involves the expiration of the guarantee.
3
SPOKES
The spokes used for the assembly of the wheels have the following
sizes and characteristics.
K4 AWR
Rear wheel Front wheel
Right side (opposite side to the disc)
302,5 mm
303,5 mm
Left side (disc side)
303,5 mm
302,5 mm
CHANGE A SPOKE
!
Warning
If you have any doubt whatsoever your service-repair ability,
please take your bicycle to a qualified repair shop.
Before any maintenance operations on your wheels, always
wear gloves and protection glasses.
Use only spokes of the same length and characteristics of
those being replaced. Use original spare parts exclusively
provided by Fac Michelin S.r.l.
To replace a spoke on the K4 AWR is extremely easy in both cases,
front as well as rear wheels.
• Unscrew the spoke from the nipples with the specific tool
• Once unscrewed, slide off the spoke from its own seat
• Insert the new spoke
• Screw in the nipple with its washer. To avoid a twisting effect,
hold the spoke in place
Draw the spoke to be used for the replacement in the thread-
locker you chose to improve sealing.
To ensure the correct spoke tension please follow the indica-
tions below:
• Correct spoke tension for front wheel 1000 N
• Correct spoke tension for rear wheel, free wheel side 1300 N
To evaluate the correct wheel tension, please use a professional
spoke tension gauge, we do not recommend that spoke tension is
estimated manually; please refer to a professional cycle mecha-
nic if you do not own a professional spoke tension gauge. The
correct spoke tension is essential to ensure a ridged and durable
wheelset.
ATTENTION in correct spoke tension, too high or too low, could
lead to wheel failure and resulting serious or fatal accident.
