2
HUBS
� Warning
If you have any doubt whatsoever your service-repair abili-
ty, please take your bicycle to a qualified repair shop.
Before any maintenance operations on your wheels, always
wear gloves and protection glasses.
Use original spare parts exclusively provided by
Fac Michelin S.r.l.
When replacing any broken sealed bearings please ensure sea-
led bearing correct measure and specification are used.
Rear hub
Right side
26x17x5 (6803)
Left side
26x17x5 (6803)
The WR 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 bea-
rings, follow these simple steps:
• Remove the contact item (A) (Fig. 1)
• On the same side from which you removed the contact item,
insert a 12mm Allen wrench (M) on the hub pin and, using
a classic 17mm wrench (N), unscrew the contact item (B)
counterclockwise (Fig. 2)
• Remove the axle from the side of the disc brake.
Once the axle has been removed, you can replace the bearings:
• Use a special puller for 17mm holes and remove both bea-
rings (S) from their seat (Fig. 3)
Once these have been replaced, proceed fitting the new be-
arings:
• Using a special tool, insert both new bearings in their seat,
checking the correct smoothness.
• I nsert the hub axel (C) again and tighten the contact item (B)
with the 17mm wrench (N) at the tightening torque of 15Nm.
(Fig. 2)
• If necessary adjust the hub by working on the ring (F) (Pic. 2):
• Unlock the grub screw (I) with a allen wrentch 2mm (L).
• Turn the ring in clock sense to drop the sliding, and in
counter-clockwise to rise the sliding.
• L ock the screw (I).
• Check the sliding of the wheel.
Please check that the hub is correctly tightened and closed,
failure to do so could lead to a serious or fatal accident.
� Warning
Use original spare parts exclusively provided by Fac Miche-
lin S.r.l. Any modification or alteration (also graphic) of the
product with non-original spare parts or spare parts not de-
livered 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
8 RE.ACT / MICHE.IT
Front hub
26x17x5 (6803)
26x17x5 (6803)
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 ne-
cessary
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 spa-
cer (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,
failure to do so could lead to a serious or fatal accident.
� Warning
Use original spare parts exclusively provided by Fac Miche-
lin S.r.l. Any modification or alteration (also graphic) of the
product with non-original spare parts or spare parts not de-
livered directly by Fac Michelin S.r.l., involves the expiration
of the guarantee.