• Integrated threadless headset
• Front derailleur braze on will allow one to turn it into a 27sp bike.
• Head tube and seat tube interface for bags, pumps, pr battery packs
• Rear swingarm bolt can be removed from non-drive side ( easy to disassemble the frame for super compact storage
• Lighter stem which folds thinner
• Upgraded drive train w/trigger shifters
• Disc hubs ( front and rear ) with disc mounts on the frame
• Upgraded brakes, levers, and noodle
• Upgraded BB
• Lighter fork
• Powder coat paint with clear coat on top.
• Upgraded cable housing
• Upgraded kickstand mount
• Cold forged cranks.
• Sealed cartridge bottom bracket.
• Preload adjustable transarch suspension fork.
• Rear disc tabs
• Lightweight and easy to fold alloy pedals.
• Alloy and stainless frame and stem quick releases
• Machined sidewall rims
• Lowest price 9 speed folder brand in the world, all others cost over $1000!
• 24H/28H spoked front/rear wheels for lightweight
• 1.5" front tire for low rolling resistance
• Replaceable 48T chainring
• Stainless Steel spokes
• Mini barends. (With many folding bikes it is difficult to steer with a long stem, barends solve this problem, but make the bike difficult to fold . not with our mini barends - easy to turn and easy to fold!)
• Folding left and right pedals for compactness.
• Plastic chainring cover to make keep chain from getting dirt and grime in your car or storage area. Also keeps the chain from falling off.
• Ding-a-ling bell to alert pedestrians and cars
• Extra wide rise handlebars to allow the rider to stretch out and feel comfortable. Rotating the rise bars can push the rider towards the saddle ( for upright comfort riding ) or away from the saddle ( for more aggressive riding )
• Super duper soft comfortable grips.
• Adjustable height stem allows bike to be used by kids and adults.
• Front and rear Quick Release skewers to quickly remove either wheel.
• Velo "love channel" saddle.
• Braze ons to allow a water bottle cage or pump.

- Front suspension fork by Zoom with transarch and preload adjustment.

- 9sp Sunrace M93 drivetrain

- 48T front chainring.

- 11-12-14-16-18-21-24-28-32 SunRace cassette. A cassette is a huge upgrade from our competitors 7sp freewheel bikes. Freewheels are a "cheaper" type of cassette. Cassettes shift MUCH better than Freewheels

- Oversized 1 1/8" headset, for increased durability and performance.

- Quality V-brakes.

- Double wall 24/28H front/rear 20" alloy rims.

- Quality front and rear Kenda 20" tires.

Read About Downtube's History

All buyers should get their bike checked by a professional after receipt just to be safe. Normally the brakes may be a bit off center, which is easy to fix, the shifting will almost always be out. Read our derailleur adjustment instructions. The crank bolts should be tightened. Fitting a bike to your body is just as important than buying the right bike. Please use our fitting instructions to fit the bike to your body.

Detailed specs:

Folded size: approx 30 x 60 x 81 cm (12" x 23.6" x 33") rear swingarm is removable for super compact folding (used on airplanes and boats)

Weight: 27 lbs.

Folding time: 10 sec

Rider Height: 4'9"-6'4"

Rider Weight 245lb max

Frame: Xtra light Aluminum frame and swing arm with water bottle cage braze-ons and balance bar with 850lb coil spring shock

Fork: Zoom fork with disc tabs for disc brakes

Saddle: Velo "love channel" saddle

Seat post: Kalin 500mm Aluminum seat post

Brakes: C Star Aluminum V brakes with strong springs

Brake Levers: Radius Aluminum Brake levers

Front wheel: Quando 24H QR disc hub with double wall rim

Rear Wheel: Quando 28H QR disc cassette hub with double wall rim

Tires: Kenda 20x1.5" front and 20x1.75" rear

Shifters: Sun Race 9sp triggers

Cassette: Sun Race 9sp 11-32

Derailleur: Sun Race M93 9sp

Cranks: Prowheel aluminum 170mm 48T with chain guard

Chain: KMC

Pedals: Folding right and left

HI, PR, AK, and Canada ship is $80