Start with a frameset that climbs like a XC race bike but descends like a trail bike. Add ENVE’s 27.5″ 50/50 rims with decals color-matched to the frame laced to DT Swiss 240s. Top it all off with Shimano’s first ever electronic group for MTB, XTR Di2 (M9050) setup with Synchro Shift, which allows both derailleurs to be controlled by one shifter – and you’ve got Sean’s new custom built Pivot Mach 4 Carbon.
Shimano’s Synchro Shift is customizable, allowing you to dial in the point at which the bike will shift itself into the other chainring. The video above shows one of the preset modes called “S1” which allows you to run all the way up the cassette before dropping into the small ring and simultaneously downshifting the cassette one cog. This maintains a gradual cadence increase or decrease. However sometimes you want to be in the small ring much earlier, for example during a grueling technical climb, where a poorly timed front shift may cause you to stall. In this instance you could switch over to one of the custom mapped programs you saved to the “S2” mode and have that front shift happen at an earlier time – like before the climbing gets rough!
The Pivot Mach 4 Carbon is a 5lb frame that sports 115mm of DW link suspension. This incredibly refined platform also happens to be the first ever Di2 compatible mountain bike frame ever developed, featuring a removable internal battery port and all necessary ports and covers providing clean wire routing for both electronic or mechanical drivetrains.
A nice little touch we have been adding to some of these builds is this protective Di2 wire jacket. Its a material we sourced to add a layer of protection we felt a mountain bike might need vs a road bike.
This is the first of many sweet Di2 builds, so keep an eye out on our blog and the PNW trails for these sweet rigs!
If you haven’t yet taken a spin on the new Pivot Mach 4, we have plenty in stock so swing by the shop! If you have questions or comments on this, or any build, leave them below. Enjoy!