Aventon
Sinch 2.5
$1,529 ride-away$1,799
In Stock- 48V 500W Hub (1056W peak) motor
- 60 Nm of torque
- 89 km real-world range
- 636.4 Wh battery
- Assist up to 20 (Class 2) mph
The Aventon Sinch 2.5
A folding electric bike trades a little range and a little stiffness for fitting in a hallway cupboard, a car boot or a train vestibule. These run from $799 to $1,899. The thing worth understanding first is that folding solves storage, not carrying, and the two get confused more than any other point in this category. The best folding electric bike here is whichever one you can carry up your own stairs, which is a different question from which one folds smallest. This one runs 48V 500W Hub (1056W peak), paired with a 636.4 Wh battery for up to 89 km of real-world range.
6061 folding aluminum frame w/ internal battery; Innova 20x4.0 tires; hydraulic disc brakes 180mm rotors; 4 pedal-assist levels; IPX5; box 43x24x33in; 300 lb weight limit
Not sure this is the right one? Read what actually makes an e-bike light before you commit.
The Aventon Sinch 2.5 is a folding fat tyre ebike, which is a less common combination than it sounds. Most folders use skinny wheels to save space. The Sinch keeps 4-inch tyres and folds anyway, at $1,799 ride-away with a 636.4 Wh battery and 60 Nm of torque.
That combination suits one particular buyer very well and suits everyone else badly, so it is worth being clear about which you are.
Fat tyres and folding is an unusual pairing
Fat tyres do two things. They float over loose surfaces like sand, gravel and snow, and they absorb bumps that a rigid frame would otherwise pass to you.
Folding does one thing. It makes the bike smaller when you are not riding it.
Putting both on one bike gets you something specific: a bike that lives in a van, a boat or a small flat, and can then be ridden on a beach or a forest track rather than only on tarmac. If that is your use case, very little else competes.
30.8 kg is the price of that combination
This is the heaviest folder in our range. Fat tyres, a folding hinge and a 636.4 Wh battery all add weight, and the total is 30.8 kg.
Folded, it is compact. It is not light. Loading it into a high van or onto a car rack is a two-person job or a careful one. If you were drawn to a folder because you imagined carrying it, this is not that bike, and the Lectric XP4 at 27.7 kg is barely better.
89 km quoted, on the softest tyres in the range
Aventon quotes up to 89 km. Fat tyres cost range, because more rubber pressed into the ground means more rolling resistance. Expect 45 to 70 km in mixed riding.
Running the tyres at a sensible pressure gets some of that back. Very low pressure gives you float on sand and eats range on tarmac, so it is worth adjusting to the ride rather than leaving it.
Is this the right bike?
Buy it if
- Van, boat and campervan owners who want one bike that stows small and rides on loose ground
- Riders who mix beach, forest track and tarmac in the same trip
- Anyone who wants fat-tyre comfort without a full-size bike taking over the hallway
Buy something else if
- Anyone carrying the bike. At 30.8 kg this is the heaviest folder we sell.
- Pure tarmac commuters. Fat tyres cost you range and speed for grip you will not use, and the Soltera 2.5 does that job at 20.9 kg.
- Riders who need maximum range. Fat tyres and a 636.4 Wh battery is a middling combination on paper and in practice.
Full specs
- Motor
- 48V 500W Hub (1056W peak)
- Battery
- 636.4 Wh
- Range
- 89 km
- Weight
- 30.8
- Torque
- 60 Nm
- Top assist
- 20 (Class 2) mph
- Warranty
- 1-Year
- Availability
- In Stock
- 1-year warranty
- 14-day returns
- Dispatched within 2 business days
- Workshop-checked before dispatch
Straight answers
Does the Aventon Sinch 2.5 fold with the fat tyres on?
Yes. It folds at the frame with the 4-inch tyres fitted, which is the whole point of the design. Folded it is compact but still 30.8 kg, so plan on wheeling and lifting rather than carrying.
Can you ride the Sinch 2.5 on sand?
Yes, that is what the 4-inch tyres are for. Drop the pressure for soft sand so the tyre floats rather than digs. Put it back up for tarmac, or you will lose a chunk of range.
What's the range on the Sinch 2.5?
89 km on a single charge under normal conditions. Real-world range varies with rider weight, terrain and assist level.
Is the Aventon Sinch 2.5 in stock?
Current availability: In Stock.
What warranty does it come with?
1-Year, plus our standard 1-year cover on frame, motor and battery.
Does it arrive assembled?
Every bike is workshop-checked before dispatch and arrives 95% assembled — pedals and bars only left for you.
What if it's not the right bike?
14-day ride-it-and-see return window, with a free return label if it's not the one.
More folding bikes
Same category, so these are the honest alternatives rather than an upsell. Compare the range, the weight and the assist limit before the price.
Or give us a shout.