Dahon Jack D7 Folding Bicycle Review
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Dahon Jack D7 Folding Bicycle Review

Dahon Jack D7 Folding Bike Review

Are you in search of a high quality and compact bicycle that can be easily stored in your car? If so, we highly recommend you to pay a close attention to such a great folding bike as Dahon Jack D7. Keep in mind that Dahon Jack D7 folding bike is designed in the United States of America and is assembled in China.

This up-to-date folding bike has everything that a cyclist needs. Dahon Jack D7 is an incredibly popular folding bike among cyclists that has gained a lot of positive reviews. You need to know that Dahon Jack D7 folding bike would be the perfect option for people who choose to travel with a bicycle! Dahon Jack D7 is known for being an easy to ride and easy to fold/unfold bike.

Dahon Jack D7 is the full-size folding cycle to help store in a small place. Do not let delays on train or taxi cab prices cause you problem, it truly is the time to hit the road and initiate commuting using Dahon Jack D7.

It’s pretty clear that cyclist’s comfort as well as security has been always the number one priority for the manufacturer of Dahon Jack D7 folding bike. What is incredible about this type of a folding bike is that its stem can be easily adjusted for the necessary height. That means that with such a folding bike as Dahon Jack D7, you’ll find it easy to take the perfect position anytime during your ride.
It’s worth noting that Dahon Jack D7 is the perfect folding bike for long distance trips. You should know that the bike’s seatpost comes with an integrated pump. So, you’ll be able to mount a pump into your folding bike fast and easy. All of this means that a flat tire would never be a serious problem for you. The pump will be always with you. So, you’ll be able to take advantage of your bike’s pump whenever such a necessity arises.

There is no doubt that Dahon Jack D7 is an incredibly convenient folding bike. Clearly, the manufacturer has made the process of folding/unfolding bike very simple. The reality is it takes a cyclist only 10 seconds to fold/unfold a bike. It’s also important to note that the bike is compact when it’s folded. So, it wouldn’t be a very difficult task for you to take a bike with you. In addition, you can also keep your Dahon Jack D7 folding bike inside with you for safety reasons. By doing so, you’ll be able to prevent your folding bike from being stolen.

You need to know that Dahon Jack D7 is a versatile folding bike. The folding bike comes with 7 gears that contribute greatly to bike’s functionality and cyclist’s comfort. Nicely-spaced gears make Dahon Jack D7 folding bike much faster. With this perfect bike you’ll be able to travel around the town successfully. The folding bike can also be used for leisure travels in the park or for riding in rural areas. It’s a great idea to use the folding bike to commute to work.

No matter where you choose to ride, Dahon Jack D7 folding bike will definitely do great job for you! There is no question that the folding bike will provide you with smooth riding experience! So, you’ll certainly enjoy riding your bike!

$749 at Amazon & Prime Eligible

Unboxing and Assembly

Specs and Features

  • Weight: 28.4 lbs (12.9 kg)
  • Folded size: 13.3″ × 36.7″ × 30.8″ (34 × 94 × 79 cm)
  • Speeds: 7
  • Gear Inches: 72″ – 356″
  • Frame sizes: S, M, L
  • Frame: DA Series dalloy aluminum, custom drawn Sonus tubing
  • Fork: Oversized, straight, integrated design
  • Brakes: Promax V, aluminum, linear spring
  • Brake levers: Promax V, aluminum
  • Handlebar: 6061-T6 aluminum, riser, 31.8 mm
  • Front hub: Formula, aluminum, QR
  • Rear hub: Formula Cassette, aluminum, sealed
  • Tires: Schwalbe Big Apple, 26″ x 2.0″, RaceGuard puncture protection, 75 psi
  • Seatpost: Dahon PostPump, 31.6 mm
  • Shifter: SRAM 3.0 Comp
  • Rear derailleur: SRAM X-4, mid-cage
  • Crankset: Dahon Supra forged 6061, 39T
  • Cassette: 11-30T
  • Chain: KMC Z50
  • Bottom bracket: CH, chromoly axle
  • Clip system: Magnetix system
  • Suggested Rider Height: 5’2″ – 5’6″ for size S, 5’6″ – 6′ for size M and 6′ – 6’4″ for size L
  • Max. Rider Weight: 230 lbs (105 kg)

Folding and Unfolding


The Jack was is designed to go on any pace you select and in order to rotate on anything in the way. Forget about leaving behind your downtown bike in that bicycle garage and getting scratched and nicked. The Jack is manufactured with the solid 7005 aluminum frame and oversize Schwalbe Big Apple tires. Obviously the big tires can help you enjoy the ride better than 20-inch folders, but they also make the bike bulkier and heavier. Having said that, it is still lighter than many small folding bikes and fortunately it still manages to fit inside my car trunk.

The folding/unfolding process is also not as easy as other Dahon folding bikes. The frame hinge is a little stiff and you will always need to bring the included 3-way wrench to adjust the handlebar.

The Jack get 7 gears, it is enough for many riders and also eases the maintenance. If you hate small folding bikes, this is just a perfect choice. While Jack is mainly an urban bike, still it has greater potentials, it can be used for quick commuting around the city, for a short trip towards the café, an evening ride inside park or even touring. This is actually a reliable bike. If you compare it to tiny and expensive Brompton bikes, this is an incredibly good value. Apart from the bulky size, the Jack D7 is obviously more aesthetically pleasing and will also deal with potholes a lot better. I also love that Dahon equip the bike with Raceguard puncture protection on the tires and integrated seatpost pump, it will guarantee you hardly have flat tires during your rides.

The Jack D7 is not really designed for high speed, my average speed is almost the same as on smaller folding bikes while the maximum speed is just a little faster. However, due to its stability as well as durability we all realize that Jack can be the best companion of a man in busy urban roads and rural areas.


Test Ride



  • There is no need for an extra car rack as it easily fits within the trunk
  • The bigger wheels deliver a smoother riding experience


  • Very bulky and heavy
  • Tool is required to fold and unfold the bike

The Dahon Jack D7 contains the feel of a powerful cycle and the ease of a folding bike. Don’t get dependent on public transports and feel free with the Dahon Jack D7 folding bike.

Price: $749 at Amazon & Prime Eligible

Check price and read more customer reviews …

Review Overview

Build Quality
Riding Experience


This is a good choice if you need a full-size folding bike.


  1. Fb

    How is the Jack compared to the Espresso?

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