Technology In Short
What is Trek IsoSpeed?
While the term “suspension” may be mis-leading, the IsoSpeed system is designed to provide riders with more comfort and control over rougher surfaces and was originally designed by Trek to give their bikes and riders an edge in the Classics – e.g. the Paris-Roubaix. The system works by “decoupling” key parts of the bike to provide more compliance and less rigidity – resulting in a more comfortable ride. IsoSpeed is one of the most mature road “suspension” systems out there, debuting in 2012. The Trek IsoSpeed system has two components:
Rear Decoupler (Top Tube/Seat Tube)
Front Decoupler (Headset)
Note that some bikes may have the rear decoupler without the front headset decoupler.
IsoSpeed is available across Carbon and Aluminium models in the Domane and Madone ranges. It is also available on a number of Trek CX and gravel models (including Boone and Checkpoint) and some of their XC MTB range. Watch some videos of the system in action below.
This video from Peloton TV is on an older model – check out the classic Dura Ace – but it’s a perfect introduction to how the Isospeed de-decoupler works in practice.
Does Trek Isospeed Work & How Has It Reviewed?
We haven’t found any reviews of the system in isolation, but there are a few comparative reviews of IsoSpeed equipped bikes vs competitors, including Specialized’s Future Shock:
2018 Trek Domane SL 5 Review
Trek Madone SLR 9 Disc Review
Towards the middle and softest setting was my preferred mode and I could altogether forget I was riding such a racing machine, let alone an aero road bike that more often than not is too hard to ever be called comfortable. To be frank about the bike’s stiffness, I couldn’t really tell that I was getting anything less from the bike in the softest setting, it still whipped up a storm no problem.
2018 Trek Boone RSL Review
2020 Trek Domane First Ride Review
2020 Trek Domane SLR First Ride Review
Are There any Known issues with Trek IsoSpeed?
Reviewing social and search data we note that the following issues which may be worth asking your dealer about before you buy: