Twitter Bikes
⏱ Made to Order: 10-25 Business daysMT390 - Twitter Alloy Mountain Bike
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Twitter MT390
Built to make the trail feel easy, the Twitter MT390 is a lightweight AL6061-T6 alloy hardtail with smooth-welded, internally routed lines and a true 13.6 kg build weight. A TW coil suspension fork with manual lockout smooths out the rough while keeping climbs efficient, and TEKTRO hydraulic disc brakes (160/160 mm) deliver confident, all-weather stopping. Rolling on RS double-wall alloy wheels wrapped in 29" (27.5") CST 2.1" tires, the MT390 comes in three drivetrain builds — from a proven SHIMANO 3×8 to a 1×9 SHIMANO CUES — so you can spec it for exactly how you ride.
Key Features
- ▪ AL6061-T6 Alloy Hardtail Frame with smooth welding and internal cable routing for a clean, durable, lightweight 13.6 kg build.
- ▪ TW Coil Suspension Fork with manual lockout — plush over rough trail, firm and efficient when you flip the switch for climbs.
- ▪ Three Drivetrain Builds — SHIMANO M315 3×8, RETROSPEC (LTWOO) 3×10, or 1×9 SHIMANO CUES U4000 — pick your range and shifting feel.
- ▪ TEKTRO Hydraulic Disc Brakes (160 mm front / 160 mm rear) for strong, consistent stopping power in any condition.
- ▪ 29" (27.5") RS Alloy Wheelset on double-wall rivet rims with sealed-bearing hubs, wrapped in grippy CST 2.1" MTB tires.
- ▪ Trail-Ready Alloy Cockpit — matte alloy 720 mm handlebar, 60 mm stem and comfortable grips for confident, upright control.
Engineering & Design Highlights
Wheels & Disc Brakes
RS alloy double-wall wheels (W25×H21mm) on sealed-bearing disc hubs, wrapped in grippy CST 29"(27.5") × 2.1" knobby tires, with TEKTRO hydraulic disc brakes (160/160mm) for confident all-weather stopping.
Wide-Range Drivetrain
An RS alloy crankset drives a broad-range cassette for gearing deep enough to spin up steep climbs and roll fast on the flats. Spec a triple-ring 3×8 or 3×10 for maximum range, or a clean single-ring 1×9 SHIMANO CUES build for simpler, quieter shifting.
Coil Suspension Fork
A TW alloy coil suspension fork with manual lockout takes the edge off roots and rocks, then firms up on demand so none of your effort is lost on smooth climbs. A 29" (27.5") wheel on a sealed-bearing hub keeps you rolling fast over rough ground.
Drivetrain Configurations
SHIMANO M315 — 3×8-Speed
SHIMANO M315 3×8 with SHIMANO TY500 front and TY300 rear derailleurs, an RS alloy square-axis 24-34-42T triple crankset, SUGEK 8-speed 11-32T cassette and SUMC chain on a Kenli square-axis BSA68 bottom bracket — a dependable, wide-range trail group.
RETROSPEC (LTWOO) — 3×10-Speed
RETROSPEC (LTWOO) 3×10 shifting with matching front and 10-speed rear derailleurs, an RS alloy hollow 24-32-42T crankset, SUGEK 10-speed 11-36T cassette and SUMC 10-speed chain on a hollow BSA68×24 bottom bracket — the deepest gearing on offer.
SHIMANO CUES U4000 — 1×9-Speed
SHIMANO CUES U4000 1×9 with U3020 9-speed rear derailleur and no front derailleur, an RS alloy square-axis 38T single-ring crankset, SUNSHINE 9-speed 11-36T cassette and SUMC 9-speed chain on a Kenli square-axis BSA68 bottom bracket — simple, quiet, modern shifting.
Specifications
| Frame | MT390, MTB, AL6061-T6 aluminum alloy, smooth welding, internal cable routing |
| Fork | TW aluminum alloy, coil suspension, manual lockout |
| Handlebar & Stem | Aluminum alloy, matte, handlebar 31.8×720 mm, stem 60 mm, seat post 31.6×350 mm |
| Clamps | Aluminum alloy, quick release 34.9 mm |
| Headset | Internal cable routing, sealed bearings 52×52 mm |
| Washer | Aluminum alloy 3×28.6×10 mm |
| Shifters |
M315 3×8: SHIMANO M315 3×8S LTWOO 3×10: RETROSPEC (LTWOO) 3×10S CUES 1×9: SHIMANO CUES U4000 9S |
| Front Derailleur |
M315 3×8: SHIMANO TY500 LTWOO 3×10: RETROSPEC (LTWOO) 3S CUES 1×9: None (1×) |
| Rear Derailleur |
M315 3×8: SHIMANO TY300 LTWOO 3×10: RETROSPEC (LTWOO) 10S CUES 1×9: SHIMANO CUES U3020 9S |
| Crankset |
M315 3×8: RS aluminum alloy, square axis, 24-34-42T LTWOO 3×10: RS aluminum alloy, hollow, 24-32-42T CUES 1×9: RS aluminum alloy, square axis, 38T |
| Cassette |
M315 3×8: SUGEK 8-speed, 11-32T LTWOO 3×10: SUGEK 10-speed, 11-36T CUES 1×9: SUNSHINE 9-speed, 11-36T |
| Chain |
M315 3×8: SUMC 8-speed LTWOO 3×10: SUMC 10-speed CUES 1×9: SUMC 9-speed |
| Bottom Bracket |
M315 3×8: Kenli, square axis, BSA68, with bearings LTWOO 3×10: Hollow, with bearings, BSA68×24 CUES 1×9: Kenli, square axis, BSA68, with bearings |
| Brakes | TEKTRO hydraulic disc, 160 mm front / 160 mm rear |
| Hubs | RS aluminum alloy, 2 sealed bearings, HG, disc, 32/32 holes |
| Rims | RS aluminum alloy, double wall with rivets, W25×H21 mm |
| Spokes | SHUNJIU, circular 14G |
| Tires | CST, 29" (27.5") × 2.1" |
| Wheel Size | 29" (27.5") |
| Grips | Circular 22.2×120 mm, comfortable |
| Saddle | Comfortable and lightweight MTB saddle |
| Pedals | Aluminum alloy, lightweight & skid-resistant |
| Cables | JAGWIRE, internal & external cable routing |
| Sizes | 29" (27.5") × 15" / 17" / 19" / 21" |
| Colors | White · Matte Black · Matte Ti Gray |
| Net Weight | 13.6 kg |
What's in the Box
- Factory pre-assembled Twitter MT390 alloy hardtail MTB
- Standard safety reflectors (handlebar, seat post, front & rear wheels)
- PC bottle cage + tools + rear kickstand
- 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.
MT390 Features
Why choose this bike
Aluminum Trail Hardtail
Alloy frame · 29"/27.5"
The MT390 lightweight alloy frame and lockout suspension fork make it a dependable, versatile entry into real trail riding.


