Safety Instructions - ERGOTEC BASS Instructions De Montage Et De Sécurité

Assembly and safety instructions for
Ahead stem BASS, HIGH BASS
Thank you for deciding to buy your new stem from our company.
Compare the SAFETY LEVEL on the stem with the attached table
in order to check whether it is suitable for the intended use.
Before use please read the following assembly and safety
instructions carefully. Keep them in a safe place and pass
them on to the next owner if necessary.
Assembly
Basic technical knowledge is required for the assembly of this product. If you do
not have this knowledge, please use the services of a specialist bicycle dealer.
Check that the internal diameter of the Ahead stem clamp (28.6 mm) fits the
external diameter of the steer tube. There are 2 different sizes:
with 1" steer tube: external diameter 25.4 mm and
with 1 1/8" steer tube: external diameter 28.6 mm.
The internal diameter of the stem clamp must fit the external diameter
of the steer tube.
Next you should check the length of the steer tube, which should be
at least 38 mm
Now you place the stem on the steer tube. With a steer tube which is longer
than 40 mm you have the possibility of using spacers to adapt the height
accordingly.
Next you position this in such a way that it is aligned with the front wheel.
For safety reasons you should never combine the stem with
a carbon fork shaft – risk of breakage!
With a 4 mm hexagonal key you lightly tighten the lower steer tube clamping
c
screw .
Before fitting the handlebars you should check that the handlebars and the
stem are compatible.
You should also check that the difference in diameter between the clamping
d
area of the handlebars and the handlebar clamp of the stem is no greater
than +0.2 mm.
For safety reasons you should not combine the stem with
carbon handlebars – this could lead to breakage!
You should also make sure that the clamping surfaces are clean
and free from grease.
Now place the clamping section of the handlebar centrally into the handlebar
d
clamping section of the stem and secure it lightly with a
4 mm hexagonal key.
After that you fit the Ahead screw of the bearings and adjust the play of the
headset, keeping in mind the mounting and safety instructions of the headset
manufacturer.
After you have adjusted the play of the headset you tighten the two steer tube
clamping screws c to an equal torque of 6 - 8 Nm. Make sure that the stem
is aligned with the front wheel.
After that you set the grip ends to your individual requirements.
Now you tighten the handlebar clamping screws e on the stem with a
4 mm hexagonal key evenly and crosswise to an equal torque of 6 - 8 Nm.
For safety reasons the max. tightness value of 8 Nm
must not be exceeded.

Safety instructions

The tightness of the bolts must be checked after approx. 500 km and once more
during the regular service intervals (with once a year as a minimum).
To prevent the risk of a fall or accident, the stem must always
be replaced if it has been damaged.
Ahead stem BASS
d
c
Direction of driving
Ahead stem HIGH BASS
e
c
d
Direction of driving
Error and technical changes reserved. The latest version of these installation and safety instructions can also be found at www.ergotec.de
english
Valid: 01.02.2022
Steering System
Mountain-Bike
Jump height < _ 60 cm
Jump height < _ 60 cm
e
Jump height < _ 60 cm
Jump height < _ 120 cm
Jump height < _ 120 cm
Jump height < _ 180 cm
Jump height < _ 60 cm
E-BIKE 25 km/h
Jump height < _ 60 cm
E-BIKE 25 km/h
Jump height < _ 60 cm
E-BIKE 25 km/h
E-BIKE 25 km/h Jump height < _ 120 cm
E-BIKE 25 km/h Jump height < _ 120 cm
Jump height < _ 180 cm
E-BIKE 25 km/h
Road-/Gravel-/Travel-Bike
E-BIKE 25 km/h + 45 km/h
E-BIKE 25 km/h + 45 km/h
City-/Trekking-Bike
E-BIKE 25 km/h
E-BIKE 25 km/h
E-BIKE 25 km/h
E-BIKE 25 km/h
E-BIKE 45 km/h*
E-BIKE 45 km/h*
Cargo-Bike
Single track / Multi track
Single track / Multi track
E-BIKE 25 km/h Single track / Multi track
E-BIKE 25 km/h Single track / Multi track
Young adult-Bike
Child Bike
12"-24"
The product classification of the ergotec Safety Level corresponds to the DIN EN ISO 4210 norm for bikes and
DIN EN 15194 for e-bikes. E-bike-type: pedal assist up to the indicated speed.
* Retrofitting only with the approval of a recognised certifying body and entry in the documents for the bike.
Guarantee
For ergotec stems the following guarantee periods apply:
with safety level 6 6 years or 35,000 km
with safety level 5 5 years or 30,000 km
with safety level 4 4 years or 25,000 km
with safety level 3 3 years or 20,000 km
with safety level 2 3 years or 15,000 km
Guarantee claims should be processed through
a specialist bicycle dealer.
Seatpost
Safety Level
max. 120 kg max. 100 kg
max. 140 kg max. 120 kg
max. 160 kg max. 140 kg
max. 120 kg max. 100 kg
max. 140 kg max. 120 kg
max. 120 kg max. 100 kg
max. 120 kg max. 100 kg
max. 140 kg max. 120 kg
max. 160 kg max. 140 kg
max. 120 kg max. 100 kg
max. 140 kg max. 120 kg
max. 120 kg max. 100 kg
Safety Level
max. 100 kg max. 100 kg
max. 120 kg max. 120 kg
max. 100 kg max. 100 kg
max. 120 kg max. 120 kg
Safety Level
max. 100 kg max. 100 kg
max. 120 kg max. 120 kg
max. 140 kg max. 140 kg
max. 160 kg max. 160 kg
max. 180 kg max. 180 kg
max. 120 kg max. 100 kg
max. 140 kg max. 120 kg
max. 160 kg max. 140 kg
max. 180 kg max. 160 kg
max. 140 kg max. 120 kg
max. 160 kg max. 140 kg
Safety Level
max. 250 kg max. 140 kg
max. 300 kg max. 160 kg
max. 250 kg max. 140 kg
max. 300 kg max. 160 kg
Safety Level
max. 100 kg max. 100 kg
Safety Level
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