NOTE on Comparing Star Ratings between Interbike 2014 and 2015 bike tests: I’ve found already that the new bike designs I’m riding this year are a step better than the best bikes I rode last year. What was a 5 star rating last year would only be a 4 star rating this year.
The Pivot Mach 6 trades some of it dw-link climbing capability for better downhill stability
Climbing - 4 stars
Climbing performance was solid though the Mach 6’s climbing efficiency was balanced with downhill stability. The Mach 6 had less of a connected feeling between the pedals and the rear tire than the Turner RFX and the Bronson.
Descending – 4 stars
The Mach 6 was a solid descender with better tracking than the previous versions with suspension upgrades done to stiffen the rear suspension
Cornering - 4 stars
The slack head angle caused some wheel flop in tight turns. The slower steering required more deliberate steering inputs than other faster steering bikes.
Summary
With geometry oriented toward descending, the Mach 6 gives up some climbing efficiency and nimbleness in its handling.
Rating Guide
5 stars - Absolutely outstanding
4 stars
3 stars - Solid performance, meets expectations
2 stars
1 star - Misses expectations by a wide margi