2-Year Warranty
Every Twitter bike is covered by a 2-year warranty against manufacturing defects — frame and components included.
- Claims handled directly by our team — fast and customer-first.
- Depending on the case we repair, send the part, replace or refund.
- Contact: warranty@twitterbikeusa.com — photos and your order number speed things up.
Make-It-Right Guarantee
Our goal is simple: if something isn't right, we make it right.
- Arrived defective, damaged or incorrect? Tell us within 7 days of delivery with photos (keep the packaging).
- We resolve it: repair, spare part, replacement or refund — whichever fits the case.
- If the bike is unusable and we can't resolve it: full refund and collection, or a replacement.
3-Day Free Cancellation
Changed plans? No problem — every order can be cancelled free of charge within 3 days (72h) of purchase.
- Before your payment is captured: full refund, no questions asked.
- After capture: refund minus only the payment processor's real transaction fees — never an arbitrary penalty.
- After 3 days your bike enters production (your build slot is committed with the factory) — cancellations at that stage carry a 10% administrative fee.
- Once shipped, it's handled as a return or warranty case.
Free Shipping — Duties Included
The price you see is the price you pay. No customs surprises at delivery.
- Free shipping with all duties & taxes included to 35+ countries — US, most of Europe, Japan, Australia and more.
- Every bike is a made-to-order build: assembled, quality-checked and test-ridden before boxing (10–25 business days typical).
- Tracking number by email the moment it ships.
Certified Quality
Our bikes are built in an ISO 9001 certified factory and certified to EN ISO 4210 (bicycles) and EN 15194 (e-bikes) — with certificate numbers you can verify.
- Aerospace-grade Toray carbon fiber classes (T800/T1000).
- Real quality-control footage from our production line.
- Independent riders rate us 4.75/5 across 84 verified reviews.
Secure Payments
Your payment is processed by the world's most trusted providers — we never see or store your card details.
- Shopify Payments (Visa, Mastercard, Amex), PayPal and local methods at checkout.
- SSL-encrypted checkout, PCI-compliant processing.
- Buyer protection through your card issuer or PayPal on top of our own guarantees.
Twitter Bikes
R18 (Sport ED) - Cyctrac Carbon Aero Road Bike
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R18 (Sport ED)
The R18 (Sport ED) is a high-modulus carbon aero road bike engineered for speed — aero tube shaping, a disc-brake thru-axle platform and fully internal cable routing for sharp, dependable handling. It rolls on RS full-carbon T800, W28×H50mm deep-section wheels with MAXXIS Pursuer 700×28C tyres, a carbon aero-racing seat post and an integrated carbon handlebar & stem (400×90mm). Choose from 3 race builds: RS SENSAH 2×12, SENTYEH ES7000 1×13 Wireless, or SHIMANO 105 R7120 2×12. Available in 3 finishes and 5 sizes.
Key Features
- ▪ Aero Carbon Frame — R18 (Disc & thru-axle 12×142), high-modulus Carbon fiber T800 & T1000, Aero, internal cables.
- ▪ Full-Carbon Fork — R18 (Disc & thru-axle 12×100), high-modulus Carbon fiber T800, 700C.
- ▪ 3 Race Groupsets — RS SENSAH 2×12 mechanical, SENTYEH ES7000 1×13 wireless, or SHIMANO 105 R7120 2×12.
- ▪ Hydraulic Disc Brakes — 160/160mm rotors for confident, all-weather stopping power.
- ▪ Deep-Section Carbon Wheels — RS full Carbon fiber T800, W28×H50mm aero on MAXXIS Pursuer 700×28C tyres.
- ▪ Carbon Cockpit — Integrated carbon handlebar & stem (400×90mm) and aero-racing seat post, fully internal cables.
See It In Motion
A full-carbon T800 & T1000 aero frameset that tips the Park Tool scale at just 7.8 kg — light enough to launch, stiff enough to sprint.
Wide-range groupsets — mechanical, wireless, or SHIMANO 105 — with hydraulic disc braking for confident control on climbs and fast descents.
A one-piece carbon integrated handlebar & stem with fully internal cable routing — aero, clean and race-ready.
Drivetrain Configurations
RS SENSAH HRD6900 — 2×12 Hydraulic
RS SENSAH HRD6900 2×12 mechanical shifting with a SRAM RIVAL 34-50T crankset, SUNSHINE 11-34T cassette and RS SENSAH G100 hydraulic disc brakes — crisp, dependable and race-ready.
SENTYEH ES7000 — 1×13 Wireless
Fully wireless SENTYEH ES7000 1×13 electronic shifting with a SENICX-PR3 48T crankset and wide-range SUNSHINE 11-46T cassette — a clean cockpit and effortless, precise shifts.
SHIMANO 105 R7120 — 2×12
Proven SHIMANO 105 R7120 2×12 hydraulic with a SRAM RIVAL 34-50T crankset and SUNSHINE 11-34T cassette — the benchmark for reliable performance road riding.
Specifications
| Frame | R18 (Disc & thru-axle 12×142), high-modulus Carbon fiber T800 & T1000, Aero, internal cables |
| Fork | R18 (Disc & thru-axle 12×100), high-modulus Carbon fiber T800, 700C |
| Handlebar | High-modulus Carbon fiber, Integrated Handlebar & Stem (400×90mm), full internal cables |
| Seat Post | High-modulus Carbon fiber, Aero-Racing |
| Saddle | RS Carbon Fiber, Comfortable & Ultralight for racing |
| Headset | Alu alloy CNC with sealed bearings 52×52mm |
| Bottom Bracket | Threaded T47×24mm |
| Shifters |
RS SENSAH 2×12: RS SENSAH HRD6900-R 2×12 SENTYEH 1×13: SENTYEH ES7000 wireless SHIMANO 105: SHIMANO 105 R7120 2×12 EDS TX 2×12: WheelTop EDS TX 2×12 (wireless & hydr) EVO TX 2×12: WheelTop EVO TX 2×12 (wireless & hydr), carbon levers |
| Front Derailleur |
RS SENSAH 2×12: RS SENSAH Z2 (2S) SENTYEH 1×13: None (1× setup) SHIMANO 105: SHIMANO 105 R7100 (2S) EDS TX 2×12: WheelTop EDS TX 2S (wireless) EVO TX 2×12: WheelTop EVO TX 2S (wireless) |
| Rear Derailleur |
RS SENSAH 2×12: RS SENSAH RD8500-GS (12S) SENTYEH 1×13: SENTYEH ES800GS 13S (wireless) SHIMANO 105: SHIMANO 105 R7100 (12S) EDS TX 2×12: WheelTop EDS TX 12S (wireless) EVO TX 2×12: WheelTop EVO TX 12S (wireless), carbon cage |
| Crankset |
RS SENSAH 2×12: SRAM RIVAL, Hollow 34-50T SENTYEH 1×13: SENICX-PR3 alloy, 48T SHIMANO 105: SRAM RIVAL, Hollow 34-50T EDS TX 2×12: SRAM RIVAL, Hollow 34-50T EVO TX 2×12: SRAM RIVAL, Hollow 34-50T |
| Cassette |
RS SENSAH 2×12: SUNSHINE 12S, 11-34T SENTYEH 1×13: SUNSHINE 13S, 11-46T SHIMANO 105: SUNSHINE 12S, 11-34T EDS TX 2×12: SUNSHINE 12S, 11-34T EVO TX 2×12: SUNSHINE 12S, 11-34T |
| Chain |
RS SENSAH 2×12: SUMC-12S SENTYEH 1×13: SUMC-13S SHIMANO 105: SUMC-12S EDS TX 2×12: SUMC-12S EVO TX 2×12: SUMC-12S |
| Brakes |
RS SENSAH 2×12: RS SENSAH G100 hydr. disc, 160/160 SENTYEH 1×13: SENTYEH G7000 hydr. disc, 160/160 SHIMANO 105: SHIMANO 105 R7070 hydr. disc, 160/160 EDS TX 2×12: WheelTop hydraulic disc, 160/160 EVO TX 2×12: WheelTop hydraulic disc, 160/160 |
| Wheelset | RS full Carbon fiber T800, W28×H50mm deep-section aero, 700C |
| Tyres | MAXXIS Pursuer 700×28C, foldable & lightweight |
| Wheel Size | 700C |
| Sizes | 43 / 46 / 48 / 51 / 54 cm |
| Colors | White · Matte Black · Matte Ink Blue |
| Net Weight |
RS SENSAH 2×12: 7.8 kg SENTYEH 1×13: 7.9 kg SHIMANO 105: 7.8 kg |
What's in the Box
- Factory pre-assembled R18 (Sport ED) (95% pre-built)
- 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.
Order your R18 (Sport ED) in 6 steps
Real screenshots of this bike's builder. About 3 minutes from size to checkout.
Find your size first
Builder step 1 — BUILD
Builder step 2 — COLOR & SIZE
Builder step 3 — WHEELS
Builder step 4 — FINISH
Your cart, then checkout
✓ What happens after you order
- Order confirmation by email right away.
- Your bike goes into production. You get photos for approval before it ships.
- Tracking link when it leaves the factory. Tires ship deflated: inflate before the first ride.
- 2-year warranty on the frame and fork.
R18 - Sport ED Features
Why choose this bike
R18 Carbon Frame
High modulus T800/T1000 carbon aero frame with internal cable routing.
High modulus T800/T1000 carbon aero frame with internal cable routing.
Carbon Fork
High modulus carbon fork with 12×100 thru-axle and disc compatibility.
High modulus carbon fork with 12×100 thru-axle and disc compatibility.
3 Race Groupsets
Choose RS SENSAH 2×12, SENTYEH ES7000 1×13 wireless, or SHIMANO 105 R7120 2×12 hydraulic.
Choose RS SENSAH 2×12, SENTYEH ES7000 1×13 wireless, or SHIMANO 105 R7120 2×12 hydraulic.
Disc Braking
Hydraulic disc brakes with 160mm rotors front and rear.
Hydraulic disc brakes with 160mm rotors front and rear.
Carbon Wheels
Deep 58mm carbon rims with carbon spokes for aerodynamic efficiency.
Deep 58mm carbon rims with carbon spokes for aerodynamic efficiency.
Color Options
Available in White, Matte Black and Matte Ink Blue.
Available in White, Matte Black and Matte Ink Blue.
Full Carbon Aero
Integrated Cockpit
Internal Cables
Multiple Drivetrain Options
Hydraulic Disc Brakes
58mm Carbon Wheels
