Bike Yoke BARKEEPTER STEM User manual
Video/Anleitung
auf Deutsch
READ THESE INSTRUCTIONS BEFORE
INSTALLING YOUR STEM!
Riding bicycles can be dangerous. These instructions should be
read thoroughly before installation. Failure to follow these
instructions before installing can result in severe injury or death.
BIKEYOKE WARRANTY
All BikeYoke Components are covered for two years from original date of purchase against manufacturer defects
in material and workmanship. The warranty applies only to the original owner and is not transferrable. Proof of
purchase is required. Product must be returned to the original retailer to process any warranty claim. This warranty
does not cover any damage caused through mis-use, crashing
or failing to comply by the recommendations given in
this manual. This warranty does not aect your statutory rights.
PREPARATION AND NOTES
1. Ensure that the steerer tube is cut cleanly and level and is free of any burrs (inside
and outside). The stem should sit, once installed on the top of all headset parts and
spacers, so that the steerer tube is approximately 2 to 3mm below the top of the
stem. This is equivalent to 37-38mm of clear space on the steerer tube above all
headset parts and spacers.
See gure A.
2. Ensure the steerer tube and handlebar clamp areas are both clean and dry
(NO GREASE!) .
3. Do not apply any grease on stem bolts or threads! The torque values are for dry bolts.
4. Use your stem only with the original bolts/fasteners and make sure to use the included washers under the
bolt heads. You can also use one of BikeYoke‘s original Ti bolt upgrade kits, which are custom made for your
BikeYoke Barkeeper stem.
5.
Your BikeYoke Barkeeper stem comes in a one piece design. Note, that not every handlebar may be compatible
with this one piece design. Typically, handlebars with rise of up to 30mm will work but it greatly depends on the
shape of the handlebar. Handlebars with more or less rise may or may not work.
6. Depending on the shape of your handlebar, installation may require the
included assembly wedge and assembly screws to spread the clamp for sliding
the stem onto the handlebar easily. Usually, the assembly screws already come
pre-installed in place of the regular M5 bolts. If not, please remove the M5 handlebar
clamping bolts and install the assembly screws instead (from rear side). Make sure
the gap is fully clear. Then fully insert the assembly wedge into the gap. Mind the
orientation of the wedge.
See gure B.
MANUAL - BARKEEPER STEM
37-38mm
Fig. A
Fig. B
www.bikeyoke.com
assembly
wedge
assembly
screws
INCLUDED PARTS
1x stem body | 4x stem bolt + washer | 2x assembly screw | 1x assembly wedge
TOOLS REQUIRED
T25 Torx | 2.5mm Hex | Torque Wrench | Caliper
PRODUCT SPECIFICATIONS
Handlebar clamp diameter: Ø 35mm | Stem length: 35mm, 45mm, 55mm | Rise: 0°
Compatible fork steerer tube: 1 1/8“ (28.6mm) only | Stack height: 40mm
Video/instructions
in English
page 1 / 2
ASSEMBLY INSTRUCTIONS
STEP 1 In case you need to open the clamp any further to slide the stem onto your
handlebar, screw the assembly bolts deeper into the stem from the rear,using a
2.5mm hex key.
The bolts will push onto the wedge, opening the clamp. Screw both bolts alternatingly
in small (1mm) increments to ensure even opening. Only open as much as you need for
your handlebar, but never exceed a gap of 9mm in any case. Use a caliper to make sure
you do not exceed a gap of 9mm.
See gure C.
STEP 2 Slide the stem onto your handlebar, loosely holding the stem between your
ngers and wiggling it in all directions through the handlebar‘s bends. Make sure to
not scratch or damage the handlebar. The stem must slide over the handlebar freely
and easily without force or squeeze. Mind the stem orientation! The handlebar clam-
ping bolts are to be on the bottom side, when installed onto the steerer tube.
See gure D.
STEP 3 After reaching the middle/clamping section of the handlebar remove the assembly bolts and the
assembly wedge.
STEP 4 When you are happy with the orientation of the handlebar (make sure it
is centered), tighten the handlebar clamping bolts - alternatingly between the two
bolts in 1Nm increments to ensure even clamping - until both reach 6Nm.
Use a T25 Torx key and torque wrench. Make sure your handlebar specs
allow the required clamping torque of 6Nm.
See gure E.
STEP 5 Loosen the steerer tube bolts to make sure the stem can slide freely onto the steerer tube. Making sure
the stem is oriented with the handlebar bolts on the lower side, slide the stem onto the steerer tube and push
down until it touches the spacers.
STEP 6 Install your headset top cap and preload bolt [or other adjustment
device] as per manufacturer‘s specications [typically preload the headset
bearings until all play is removed but rotation is still smooth].
See gure F / 1.
STEP 7 When you are happy with the stem alignment [making sure the stem is in line
with the front wheel], tighten the steerer tube bolts, alternatingly between the two
bolts to ensure even clamping, until a torque of 8Nm is reached on both bolts.
Use a T25 Torx key and torque wrench.
See gure F / 2.
Fig. C
Fig. D
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MANUAL - BARKEEPER STEM
Fig. E
6Nm
Fig. F
1.
2.
Install top cap
Tighten bolts
Torque:
Max.
9mm
USE & MAINTENANCE
• Periodically check the hardware for tightness.
• Periodically open the steerer bolts and handlebar bolts and retighten them to specication
to relieve tensions in your clamped connection, especially after crashing.
• Before every ride - and immediately after crashing - inspect all parts of the stem (and handlebar) for any sign of
damage an do not ride or do not keep riding before you made sure your stem and handlebar are in proper
working condition
.
• Replace your stem and handlebar after hard crashes!
8Nm
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