The Solo uses 125mm of VPP suspension, kinda like a Blur with slightly bigger wheels or a Tallboy with slightly smaller ones. It comes in alloy or carbon versions and frame only options.
Here's the official word from Santa Cruz:
With Bronson-mania still at full throttle, you’d be forgiven for thinking we’d burned out on big launches for the year. But the story’s just begun. Solo pushes further into the realms of 27.5" possibilities. Developed using what we learned from Bronson, it takes the design platform in a different direction. The low bottom bracket height, shorter chainstays and 125mm of progressive VPP™ suspension give Solo its snappy, nimble, ride. A 68 degree head angle adds climbing agility into the equation, while a 5 lb carbon frame weight define Solo as the tool for that back country mission you’ve always planned. Responsibly offered in Mountain Rescue Orange, Solo goes where no bike has gone before.
125mm travel VPP™ suspension.
Sizes: S, M, L, XL
Colors: Carbon: Gloss Orange or Matte Carbon
Aluminum: Gloss Orange or Gloss White
12 ENVE decal choices
Fork options: Standard: 32 Float 130 CTD Evolution Upgrade: 32 Float 130 CTD Adjust Kashima
Shock options: Standard: Custom tuned Fox Float CTD Evolution Upgrade: Custom tuned Float CTD Adjust Boost Valve Kashima
Total frame weight: 5.06 lb (for size M, carbon)
142 mm rear axle spacing
2 bottle cage mounts
Forged upper and lower links
Double-sealed pivots with grease ports for low maintenance
Collet axle pivots and angular contact bearings maximize stiffness
Standard or direct mount rear derailleur hanger option
ISCG-05 tabs for chain guide compatibility.
Stealth and external seatpost cable routing.
73mm threaded BB: creak-free riding and easy installation
Molded rubber frame protection
A tasty little video of Peaty going Solo in Scotland...