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Masi Bikes

Barolo i/O

Barolo i/O

Regular price $5,999.99
Regular price Sale price $5,999.99
Sale Out of stock

SKU: SKU:41831

A big and bad attitude to match the wine that shares its name, the Barolo is the first in the line of exciting things to come at Masi. A Fazua drive unit and full carbon gravel frame and fork make for a bike that is as happy on a lonely dirt road as it is mixing it up in a Saturday morning group ride. The Fazua evation drive system is the lightest and most compact mid-mounted system, having a non-motorized appearance. The ability to replace the motor and battery with a cover, coupled with the low-friction feel make the Barolo easily converted to a standard, non-assist bicycle. Whether it is going further faster, or just keeping up with stronger riders, the Barolo will bolster everything you love about riding.

Sizing Guide

Size Table


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  • Fazua evation mid-drive motor, 250 Watt | 55 Nm | 3 assist levels
  • Full MC9 carbon frame and fork with clearance for up to 40c tires
  • 2in1 Conversion to non-pedal assist bicycle using integrated battery cover
  • Slim, compact non-motorized appearance
  • Low-friction drive-unit for resistance free pedaling with or without motor assist
  • Class 3 eBike pedal-assist up to 28mph
  • Up to 80 miles estimated range


FrameBarolo i/O | MC-9 carbon | 1.125 - 1.5" tapered head tube | Fazua mid-mount | Di2 compatible | Internal routing | Replaceable derailleur hanger | 12 x 142mm thru-axle
ForkBarolo gravel | MC9 carbon construction | Carbon 1.125 - 1.5" tapered steer tube | Flat-mount disc | 12 x 100mm thru-axle
ColorsViolet Veil Grey
Weight31.8 lbs, 14.4 kg
CranksPraxis Carbon | ISIS standard | 50/34T chainring | 52-55cm : 172.5mm, 58cm : 175mm
ChainKMC X11
Bottom Bracket
Front DerailleurShimano Ultegra FD-R8000 braze-on
Rear DerailleurShimano GRX RD-RX810 11s
Derailleur ShifterShimano GRX ST-RX600 2X11
Freewheel/CassetteShimano CS-HG7000 | 11-spd | 11-34T
Drive UnitFazua evation mid-drive motor, 250 Watt | 55 Nm | 3 assist levels
Battery252 Wh internal
TiresKenda Alluvium Pro | 700x40c | GCT puncture protection | 120tpi | Tubeless compatible | Folding
Wheels/RimsDT Swiss HE-1800 Spline 32 | 700c | Depth: 32mm, Width: 24mm | Welded rim | 32H
HubsDT Swiss HE-1800 Spline 32 | Front: 12 x 100mm thru-axle, Rear: 12 x 142mm thru-axle | 11s Shimano freehub | Center Lock | 32H
BrakesShimano GRX BR-RX400 hydraulic disc | Flat mount | RT-70 Center Lock rotor, F: 160mm, R: 140mm Shimano GRX ST-RX600 hydraulic
Brake LeversShimano GRX ST-RX600 hydraulic
Grips/TapeMasi Gripper Silicone Gel
HandlebarBrev M. race alloy gravel bend | ϕ 31.8mm | 122mm drop | 70mm reach | 16° flare | 52 - 54cm: 42cm, 58cm: 44cm
StemBrev M. Gravel Race | 3D forged alloy | -7° drop | 52-55cm: 100mm, 58cm: 110mm
HeadsetMasi by Token 1.5" tapered | Sealed bearing
Saddlefi'zi:k Taiga Gravel
Seat PostBrev M. Carbon | ϕ 27.2mm x 300mm | 10mm offset
Seat ClampIntegrated
ExtrasFazua fx 880 remote switch, battery charger, and down tube cover


Geometry & Sizing
A. Top Tube (Effective)560mm (22")583mm (23")600mm (23.6")
B. Seat Tube (C-T)514mm (20.2")550mm (21.7")580mm (22.8")
C. Stack Height592.5mm (23.3")621.1mm (24.5")640mm (25.2")
D. Reach384.5mm (15.1")387.2mm (15.2")398.2mm (15.7")
E. Standover790mm (31.1")840mm (33")860mm (33.8")
F. Head Tube Length167mm (6.6")197mm (7.8")217mm (8.5")
G. Head Angle72.5°72.5°72.5°
H. Seat Angle73.5°72.5°72.5°
I. Wheel Base1018mm (40.1")1030mm (40.6")1047mm (41.2")
J. Chainstay430mm (16.9")430mm (16.9")430mm (16.9")
K. BB Drop74mm (2.9")74mm (2.9")74mm (2.9")
L. Fork Offset45mm (1.8")45mm (1.8")45mm (1.8")
M. Stem Length100mm100mm110mm
N. Bar Width420mm440mm460mm
O. Crank Length172.5mm172.5mm175mm
P. Wheel Size700700700

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Customer Reviews

Based on 1 review
Rana Kennedy
Smoking fast and so fun!

My first e-bike ride was on this beauty! I flew down the trail while pedaling hard. I especially loved the assist on the super steeps and felt like it maneuvered well with great control. I ride gravel, road, and mountain bikes so for me, in comparison, it has a great mix between road and gravel with better handling and higher on the thrill factor because of the available speed. That said, I appreciated the help on the ride home after I was spent🙂

*Specifications are subject to change without notice

*Actual retail price may vary based on any added dealer freight, tax, and assembly fees