The Alight DD Disc is redesigned with a fast and fresh look, and is equipped with touchpoints to maximise comfort, accessory mounts and dependable components, making this a versatile flat-bar road bike perfect for commuting and keeping an active lifestyle
Key Performance Factors
Versatility
Equipped with integrated mounts for fenders, a rear rack, and a kickstand, the Alight lets you customise your accessories so you can make room for all your essentials and stay clear of debris.
Comfort
Staying comfortable on your daily rides is a non-negotiable, so the Alight comes with shock-absorbing grips, a compliant D-Fuse seatpost, and a pressure-relieving saddle.
Control
The Alight’s powerful disc brakes work in dry or wet conditions, and with the increased fork clearance, you can install up to a 40c tyre, which allows for greater traction.
Techs & Features
The proprietary “D” shaped composite seatpost damps vibration, resulting in a smooth, compliant ride.
Sizing Guide and Geometry
Sizing to be used as a reference only. Please check with a local authorized dealer to determine the correct size.
Available sizes may vary from country to country.
- XS
- 148 cm4’10”
163 cm5’4”
- S
- 158 cm5’2” 169 cm5’7”
- M
- 164 cm5’5” 175 cm5’9”
- L
- 170 cm5’7” 183 cm6’0”
| XS | S | M | L | ||
|---|---|---|---|---|---|
| A | Seat Tube Length (mm) (inch) | 37014.6 | 42016.5 | 46018.1 | 50019.7 |
| B | Seat Tube Angle (degrees) | 73.5° | 73.5° | 73.0° | 73.0° |
| C | Top Tube Length (mm) (inch) | 53521.1 | 55021.7 | 57022.4 | 59023.2 |
| D | Head Tube Length (mm) (inch) | 1305.1 | 1505.9 | 1606.3 | 1756.9 |
| E | Head Tube Angle (degrees) | 70.0° | 70.5° | 71.0° | 71.0° |
| F | Fork Rake (mm) (inch) | 502 | 502 | 502 | 502 |
| G | Trail (mm) (inch) | 78.23.1 | 74.82.9 | 71.42.8 | 71.42.8 |
| H | Wheelbase (mm) (inch) | 104441.1 | 105541.5 | 106541.9 | 108542.7 |
| I | Chain Stay Length (mm) (inch) | 44517.5 | 44517.5 | 44517.5 | 44517.5 |
| J | Bottom Bracket Drop (mm) (inch) | 622.4 | 622.4 | 622.4 | 622.4 |
| K | Stack (mm) (inch) | 55421.8 | 57522.6 | 58723.1 | 60123.7 |
| L | Reach (mm) (inch) | 37114.6 | 38015 | 39115.4 | 40616 |
| M | Stand Over Height (mm) (inch) | 59123.3 | 59023.2 | 59123.3 | 58723.1 |
| N | Handlebar Width (mm) (inch) | 60023.6 | 60023.6 | 64025.2 | 64025.2 |
| O | Stem Length (mm) (inch) | 803.1 | 803.1 | 903.5 | 1003.9 |
| P | Crank Length (mm) (inch) | 1656.5 | 1656.5 | 1706.7 | 1706.7 |
| Q | Wheel Size | 700C | 700C | 700C | 700C |
Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.