G2max - PB - Twitter Alloy Gravel Bike
Twitter G2max-PB
The flat-bar sibling of the G2max, the Twitter G2max-PB keeps the same tough aluminum-alloy gravel frame and carbon disc fork but swaps the drop bar for an upright alloy flat handlebar — an approachable, do-it-all machine for commuting, fitness and light off-road. Wide 700×50C tires and full-hydraulic disc braking handle any surface, with a choice of Shimano CUES 1×9, Shimano CUES 2×9, or SENTYEH ES800 1×13 wireless drivetrains.
Key Features
- ▪ Lightweight Aluminum-Alloy Frame (Disc & Thru-Axle 12×142) with carbon disc fork and internal cable routing.
- ▪ Upright Flat-Bar Cockpit — confident, comfortable control for city and trail.
- ▪ Three Drivetrain Builds — Shimano CUES 1×9, Shimano CUES 2×9, or SENTYEH ES800 1×13 wireless.
- ▪ Full Hydraulic Disc Brakes (160/160mm) for confident all-weather stopping.
- ▪ RS AL7005 Alloy Wheelset with wide INNOVA 700×50C tires for monster-gravel grip.
- ▪ Threaded Bottom Bracket & Sealed Bearings throughout for low-maintenance durability.
See It In Motion
A flat-bar gravel machine — confident, comfortable, and ready for anything from commute to trail.
Tarmac, gravel, and everything in between — planted and composed on wide 50C rubber.
Shimano CUES or SENTYEH wireless — dependable, wide-range shifting built for every surface.
Drivetrain Configurations
Shimano CUES U4000 — 1×9-Speed Hydraulic
Bombproof Shimano CUES U4000 1×9 with alloy crankset, SUGEK 11–36T cassette and RS flat-mount full hydraulic disc brakes (160/160mm). The dependable, low-maintenance choice.
SHIMANO CUES U4000 — 2×9-Speed Hydraulic
Clean 1×12 setup — no front derailleur — with SENICX FD5 crankset, SUNSHINE 11–42T cassette and RS SENSAH HRD-G100 full hydraulic disc brakes. Wide range, simple to run.
SENTYEH ES800 — 1×13-Speed Wireless Hydraulic
SENTYEH ES800 1×13 wireless with RS alloy 42T crankset, wide-range SUNSHINE 11–46T cassette and RS SENSAH HRD-G100 full hydraulic disc brakes. The widest gearing range for loaded touring and steep climbs.
Specifications
| Frame | G2max-PB, aluminum alloy, Disc & Thru-Axle 12×142, internal cable routing |
| Fork | G2max, carbon fiber, Disc & Thru-Axle 12×100, 700C |
| Seat Post | High-modulus carbon fiber |
| Saddle | Comfortable & lightweight for racing |
| Handlebar Set | Lightweight alloy flat handlebar, internal cable routing |
| Bottom Bracket | Threaded, sealed bearings |
| System |
CUES 1×9: Shimano CUES U4000 1×9 SHIMANO CUES 2×9: SHIMANO CUES U4000 2×9 SENTYEH ES800 1×13: SENTYEH ES800 1×13 wireless |
| Rear Derailleur |
CUES 1×9: Shimano CUES U4000 9-speed SHIMANO CUES 2×9: SENTYEH ES800 13-speed wireless SENTYEH ES800 1×13: SENTYEH ES800 13-speed wireless |
| Crankset |
CUES 1×9: RS square-taper alloy SHIMANO CUES 2×9: RS alloy, hollow, 32/42T SENTYEH ES800 1×13: SENICX FD5 alloy, hollow, 42T |
| Cassette |
CUES 1×9: SUGEK 9-speed, 11–36T SHIMANO CUES 2×9: SUGEK 9-speed, 11–36T SENTYEH ES800 1×13: SUNSHINE 13-speed, 11–46T |
| Brakes |
CUES 1×9: RS flat-mount hydraulic, 160/160mm SHIMANO CUES 2×9: RS SENSAH HRD-G100 hydraulic, 160/160mm SENTYEH ES800 1×13: RS SENSAH HRD-G100 hydraulic, 160/160mm |
| Rims | RS AL7005 aluminum alloy, double wall, 700C |
| Tires | INNOVA 700×50C, black |
| Wheel Size | 700C |
| Sizes | 45 / 48 / 51 / 54 cm |
| Colors | White · Matte Black · Matte Ti Gray · Matte Desert Green |
| Net Weight | 10.1 – 10.2 kg |
What's in the Box
- Twitter G2max-PB bike
- Standard safety reflectors (handlebar, seat post, front & rear wheels)
- Aluminum alloy bottle cage + adjustment tools
- Official manual + Warranty card
We reserve the right to make changes to product information at any time without prior notice, including specifications, models, colors, and materials.


