Monkey Bone 160mm/180mm (Art. 8553/Art. 8554)
EN: Thank you for purchasing a Monkey Bone rear disc
brake adapter. The Monkey Bone offers a simple method
of anchoring the axle of the Rohloff SPEEDHUB 500/14 to
a frame through the disc brake mount. In order to use
the Monkey Bone, your SPEEDHUB 500/14 will need an
OEM2 axleplate, your frame must have an International
Standard disc brake interface, and your disc brake caliper
must have a Postmount interface. The Monkey Bone is
not compatible with IS direct-mount disc brake calipers
or frames with Postmount disc brake interface.
Required Tools:
5mm Allen wrench
•
Torque wrench
•
T20 Torx wrench
•
Required Parts:
Frame with IS51 disc mount interface
•
Disc brake caliper with Postmount interface
•
Rohloff SPEEDHUB 500/15 with OEM2 axleplate
•
Monkey Bone
•
2x M6x16 bolts (sold separately; typically
•
included with disc brake caliper)
2x M6x18-20 bolts (sold separately; often
•
included with disc brake caliper)
Identifying Features
Post Mount Brake
Caliper Interface
International Standard
Frame Interface
Rotor size marked
on rear post
~26mm = 160mm
~34mm = 180mm
Cutout for Rohloff OEM2 Axle Plate
rem zadel
Installation Instructions
1.
Ensure that you have the Monkey Bone that is appropriate
for your disc rotor diameter (160mm or 180mm; 203mm
rotors can be used with 180mm Monkey Bone and spacers
(sold separately)).
2.
Attach the Monkey Bone to the frame using two M6x18-20
bolts. Ensure that slot for OEM2 axleplate faces the
dropout. Tighten bolts to a torque of 6 Nm/51 in-lbs.
3.
Connect disc brake caliper to Monkey Bone using two
M6x16 bolts. Leave bolts loose enough that caliper can
slide side to side.
4.
Install wheel into dropout taking care to align slot in end of
OEM2 axleplate with cutout in Monkey Bone and disc rotor
between brake pads.
5.
Check position of EX shift arm with OEM2 axleplate
engaged with slot in Monkey Bone; reposition axleplate as
needed for desired cable routing using T20 Torx wrench
(see Rohloff Owners Manual). Tighten axleplate screws to a
torque of 3Nm/25 in-lbs.
6.
Fully seat axle in dropout before tightening quick-release
lever or axle nuts. Threaded axle nut torque: 30 Nm/310
in-lbs; Pitlock or bolt-on skewer torque: 7 Nm/60 in-lbs.
7.
Follow brake manufacturer's recommendation for setting
brake caliper position. Tighten brake caliper bolts to a
torque of 6 Nm/51 in-lbs.
CAUTION:
Use of the Monkey Bone with certain frames could result in the
wheel being levered out of the dropout while pedalling due to the
forces exerted by the Rohloff SPEEDHUB 500/14 onto the frame. The
reaction force in the lowest gears can lever the axle down and out of
the dropout slot if the anchoring point of the OEM2 axleplate is
located in front of a parallel line through the dropout slot. The
Monkey Bone and OEM2 axleplate combination is not permissible for
use on such frames.
Use of the Monkey Bone and OEM2 axle plate is entirely at the user's
own risk. The forces applied to the disc brake mount by the Rohloff
SPEEDHUB 500/14 can damage some frames. Please contact your
frame manufacturer to determine whether this setup is appropriate
for your frame and whether it affects your frame warranty
service@rohloff.de
www.rohloff.de
Tel. +49 (0)561 -510 80 0 de/en/nl/fr 20160208
Assembly Views
Permissible
Non-permissible
.
Line Parallel to
dropout slot
Non-permissible
OEM2 Axleplate anchoring
point in front of line
Reaction force in lowrst gears