Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences
Hochschule Karlsruhe Hochschule Karlsruhe - University of Applied Sciences

The bike repair station on the Karlsruhe University of Applied Sciences Campus

A station to repair bikes

Thanks to various project works within the Automotive Engineering Course at the Faculty of Mechanical Engineering and Mechatronics, a station was constructed, on which students can repair their bicycles independently and free of charge. The structure is in front of the B building. Location

Three students, Simon Bürklin, Jannis Fischer and Jonas Sommer, created videos in a further project that serve as repair instruction videos so that even inexperienced people can fix their bicycles with success. In these videos, the FahrradCoach explains in German how the respective repairs are carried out. A practical way to improve your German and your bike repair skills!

The videos are listed below - just click and off you go!

Contact

Head of Bachelor Programme Automotive Engineering

Prof. Dr. Maurice Kettner

Tel.: +49 (0)721 925-1845
Fax: +49 (0)721 925-1915
maurice.kettnerspam prevention@h-ka.de

Status

27 March 2024: air pump - repair done

Fix a puncture

Find out how to fix a puncture in your tire.

to the video

Change your chain

When changing a chain, even the most experienced bicycle coach breaks a sweat a little.

to the video

Change your brakes and adjust them correctly

Find out how to set your brakes correctly after you've changed them.

to the video

Pump up your tires

The bike coach shows himself again from his best side and shows the best way to inflate your tires.

to the video

Dismantle the wheel

The bike coach shows himself again from his best side and shares some of his knowledge. Find out how to dismantle a wheel.

to the video

Adjust your brakes

In this video, the FahrradCoach shows you how to adjust your brakes.

to the video

Adjust your front derailleur

Find out how to set up your front derailleur correctly.
For the impatients:
0:40 stop high gear
1:48 stop small gear
2:25 chain tension

to the video

Adjust the internal-gear hub shifter

The bicycle coach shows his best side once again and teaches how to adjust the internal-gear hub shifter.

to the video

Change your brake cables

In the following video, the FahrradCouch shows you how to change a brake cable.

to the video

Fix the dynamo hub

The bicycle coach strikes again and imparts some of his knowledge on the subject of dynamo adjustment.

to the video

Lubricate your chain

The bike coach shows you how to lubricate your chain.

to the video

Adjust your rear derailleur

Here you can find out how to adjust your rear derailleur.
For the impatients:
0:45 stop the high gear
2:00 stop the small gear 
2:44 index your gear

to the video

Adjust the height of your handlebar

To adjust the height of your handlebar, you should first loosen the screw that lies axially in the head tube. (left)

If you then want to adjust the whole thing a little more finely and rotate your handlebars, you can loosen the screw responsible for this. (right)

There is no right or wrong way to adjust the handlebar height.
However:

A high handlebar makes for a more upright sitting position and thus for greater air resistance, and you'll consequently ride a little slower. On the other hand, it is less strenuous to maintain the riding position.
A low handlebar, on the other hand, creates a sitting position with less air resistance and is therefore suitable for sportier riding. However, the posture requires a somewhat more pronounced fitness in the long run.

I hope you found your seat better than confused freshmen. Have a good ride!

Adjust the height of your saddle

To adjust the height of your saddle, you must first loosen the clamp.
This is usually tightened with a hexagon socket screw or a quick release.

There are two things to keep in mind when adjusting the saddle:

The leg is almost fully extended at the lower crank dead centre, i.e. it forms an obtuse angle between the upper and lower leg.

You should also be able to balance yourself when stopping at traffic lights.
I hope you are now sitting comfortably and safely and wish you: Have a good ride!

Your BicycleCoach.

 

Adjust the kickstand

If your bicycle has a telescopic kickstand, you can vary its length. To vary the length of your stand, you usually have to loosen a screw or similar.
To determine the right length for your stand, you should pay attention to the angle of your bicycle to the stand. Simply observe when it has a stable stand. If you need a rough value, try to set α to approx. 75°-80°. You should also pay attention to the surface on which your bike is standing.
I hope your bike is now as stable as a rock. See you next time!
Your BicycleCoach