20" wheels, suspension seatpost
IPX5, safe for light rain
500W vs 716W avg
Compared with 132 similarly priced models ($1,349–$2,249), from manufacturer specs.
Aventon Sinch 2.5
| Measurement | One Size |
|---|---|
| Standover Height | 15"38.1 cm |
| Stack | 534 mm |
| Reach | 491 mm |
| Stack/Reach Ratio | 1.09 |
| Top Tube Length | 675 mm |
| Seat Tube Length | 400 mm |
| Seat Tube Angle | 71° |
| Head Tube Length | 165 mm |
| Head Tube Angle | 72° |
| BB Drop | 0 mm |
| Front Center | 717 mm |
| Chainstay Length | 420 mm |
| Wheelbase | 1137 mm |
| Rake | 50 mm |
| Trail | 44 mm |
Fits riders
4'11" – 6'2"150 – 188 cm
One frame size. Heights are the manufacturer's recommendation, not a hard limit.
None yet.
Do you ride this one? Help other riders work out which size suits them by sharing your own height and how it fit.
Compare Aventon Sinch 2.5 to other vehicles
Pick a challenger and see every spec side by side.
Aventon Sinch 2.5vs
Buying Guide
E-Bike Classes Explained: Class 1, 2, and 3, and Where You Can Ride
Every e-bike sold in the US falls into one of three classes, and the class decides where you can ride it, how fast the motor helps, and whether a throttle is allowed. Here is what each class means, where the rules differ, and which one fits how you ride.

Best Of
The Best Suspension Seatposts for E-Bikes
Most e-bikes have no rear suspension, so every pothole goes up the seatpost. These are the linkage posts reviewers and owners rate highest, with the rider limits and measurements to check first.

Best Of
The Best Comfort Saddles for E-Bikes
E-bike riders sit upright and stay seated, so the saddle takes the whole ride. These are the comfort saddles reviewers and owners rate highest, sorted by how upright you sit.