Andrextr - MTB Suspension
Suspension analysis
The design and kinematics of the rear suspension have a strong impact on your bike performance. Kinematics can affect how efficient your bike pedals, how well your bike absorbs bumps and big impacts, and how your bike handles with braking.
From XC, Enduro, Downhill or e-MTB, we all have different riding styles and we all ride on different types of terrain. Not every bike are optimized for your style. To get the most of your bike it is crucial to match the kinematics with your riding style.
Here you can request my technical knowledge to analyse rear suspension designs and to help finding the kinematics that fits you.
About
My name is André, from Portugal, and since the late 90's I have a passion for mountain-bikes, suspensions and physics.
I created the YouTube channel "andrextr" as an hobby to freely share my passion and knowledge about MTB suspension. During this time I collaborated with some bike manufacturers as an external R&D consultant and as a trainer. I also collaborated with technical reviews for a main MTB online magazine.
Here, I provide tailored technical services for riders and companies.
Have fun!
Services
Are you spending a fortune on a new mountain-bike? Are you not sure if it has a progressive linkage or good pedaling efficiency?
Do you want to know whether your bike will work well with a coil shock or an air shock?
Or are you a Local Bike Shop owner who wants to provide more added value to customers?
Don't worry, let me help you!
Basic bike analysis
30 € (approx. 30$ USD)
Request any full-suspension bike.
You will get a two-page PDF file containing:
- Analysis of pedal efficiency (Anti-Squat);
- Analysis of progressivity (Leverage Ratio);
- Comment about suitability to coil or air shocks;
- Comment about suitability to your riding style;
- Explanation of concepts with a easy-to-understand and practical language.
For multiple bikes: 10% discount
Advanced bike analysis
50 € (approx. 50$ USD)
Request any full-suspension bike.
You will get a four-page PDF file containing:
- Analysis of pedal efficiency (Anti-Squat)
- Analysis of progressivity (Leverage Ratio)
- Analysis of braking (Anti-rise)
- Analysis of axle-path, kickback and chain-growth
- 5 graphs for anti-squat, anti-rise, chain-growth, axle path and leverage ratio
- Comment about suitability to coil or air shocks.
- Comment about suitability to your riding style and terrain
- Explanation of concepts with a easy-to-understand and practical language
For multiple bikes: 10% discount
Training & consultancy
Ask for a quote
Do you own a Local Bike Shop?
I can offer tailored online courses to your staff, using real examples of bikes you sell. Trained employees can bring value by offering better guidance to customers.
Are you a bike manufacturer?
I can offer consultancy services for suspension design and kinematics optimization.
Do you want to promote your bike?
I can make independent bike analysis videos on my youtube channel.
- and more...
YouTube
YouTube
Unsprung weight & Suspension performance (MTB Rear Ep. 22)
Pedaling efficiency and anti-squat (MTB suspension Ep.21)
Specialized DEMO 2020 Review (Suspension kinematics)
Rebound speed vs Suspension performance (MTB Ep.15)
Bicimax,
FOX Service Center Iberia
At FOX Service Center we seek for excellence in service and, to ensure it, we rely on the experience from the best technicians.
The training is a fundamental tool to acquire the skills, and the cooperation with André has proven to be crucial for the knowledge update by our technicians team.
Brandon Turman,
Vital MTB
André's breadth of suspension knowledge and analysis skills have been an excellent compliment to our mountain bike reviews. Only with hard numbers can you get the most clear and informed picture of bike performance.
MBR Magazine
Testimonials
