Unstable bike on a descent; what to look for?

Robert Gaggini
Bike Fit with Shane Burgess



You have a new bike and you are enjoying your riding more and more.

You are getting fitter and faster. You can get out more frequently and take in the longer rides with your mates.

However you notice that you are unsure on a fast descent. You notice that compared to your mates you are the slowest.

In fact on a straight line the bike starts a dangerous wobble, forcing your mates to stay well away.

What could be the problem? I have one answer.

1) Bike Fit

There is a possibility of a mechanical issue and this must be examined, however has a professional bike fit been performed?

A poor bike fit will produce an unstable ride. 

This is not only a question of centre of gravity but also of the rider in the context of the bike geometry.

A poor bike fit may not be evident until your cycling is taken to an extreme level.

In this instance, extreme speed!

However with increased quantity and intensity other issues will arise.

Thank You for Reading. Please Share.

Robert Gaggini
Mt Gambier Winner 2005




Robert Gaggini is founder of Adelaide Cycling Academy and owner of Infuga Retreat. As a cycling coach Robert brings years of experience to a wide range of Cycling Activities.


Winner of multiple cycle races including Mt Gambier 100mile classic 2005, and Alphutte 2003, (4th in 2012). Participant in a variety of endurance events including Paris-Brest-Paris, and is a 40km per day commuter for over 20years.


If you require any assistance with training plans, cycle coaching or if you just want to ride faster, Robert is happy to assist.





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