Downtube 9FS Full Suspension Folding Bike


Our Crown Jewel: A full suspension folding bike w/ top notch components

The Downtube 9FS takes folding bike comfort to a whole new level. With its state-of-the-art front and rear suspension system, the 9FS is the most comfortable bike we offer. The suspension will absorb the road’s imperfections, which will keep your body fresh. Long rides will seem shorter than ever thanks to its comfort.

The top tier light aluminum frame makes the 9FS smooth to ride around the clock. It's also rock-solid when it comes to build quality and has an expandable frame that will grow with you.

The 9FS comes fitted with a front dérailleur braze on (with cable routing), disc brake tabs, head tube bag interface, pump interface, kickstand mount, two water bottle braze ons, rack braze ons, and a removable frame protector from below that can act as a kickstand when folded.

All this makes taking the 9FS on a trip around town or around the world as convenient as it gets.

The quality of the 9FS begins with the suspension system and solid aluminum frame, and extends into every single detail. This includes massive welds, beautiful design, cold forged cranks, and lightweight integrated headset system.

Ride the 9FS around and you will instantly feel the quality of the high end 9sp racing drive train. With a performance matching that of the Shimano Deore, this is the best quality drive train you will find on a folding bike under $1000.

Once you try using the brakes, you'll notice how powerful they are. The 9FS comes fitted with high-end two finger Tektro levers (with a comfort rubber grip), Tektro V brakes, and matching double-wall aluminum-machined sidewall rims.

The textured rim surface is essential to get optimal braking performance. Other manufacturers still use slick rims which allow the brakes to slide on the rims surface. This bike is also disc brake ready with 6-bolt interfaces on both front and rear hubs, and cable stops for discs.

The stock brake system is ideal for the majority of customers, and better for travelers (disc rotors are likely to bend while folding & unfolding). Please read our disc vs V-brake article to decide which is best for you. Overall, these quality brakes make stopping quick and easy.

Turning the 9FS into an 18 or 27-speed bicycle is super easy thanks to the front dérailleur braze on with cable routing, which is included with every 9FS folding bike. We use 130BCD cold forged cranks that will accept another chain ring for easy conversion to 18sp. for faster downhill riding. All you have to do is place on a bigger chain ring. Most customers go with 58T-60T big rings. Please read about double and triple chain ring conversions.

Even though the 9FS is so feature-packed, it is extremely portable. When folded, you can conveniently fit it in any vehicle, boat, or train which makes carrying it around as pleasant as riding it.

The 9FS is a steal at under $1000. Folding bikes with similar features are more than twice the price. This is due to our low-cost, customer direct high-value business model.

If you are looking for a premium folding bike with suspension at a bargain price, the 9FS is what you are looking for.


  • Folded size: 14" x 24" x 35" 
  • Weight: 27.5 lbs 
  • Folding time: 13 seconds 
  • Rider Weight: 255 lbs max. 
  • Front derailleur braze-on will allow one to turn it into a 27sp bike.
  • Head tube and seat tube interface for bags, pumps, or battery packs
  • Gear inches: 28 to 81.5 
  • Upgraded drivetrain w/trigger shifters
  • Disc hubs (front and rear) with disc mounts on the frame
  • Kickstand frame mount
  • Cold forged cranks
  • Sealed cartridge bottom bracket.
  • Preload adjustable trans-arch suspension fork
  • Front & 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 $1,000!
  • 24H/28H spoked front/rear wheels for light weight
  • 1.5" front tire for low rolling resistance
  • Replaceable 48T chainring
  • Stainless Steel spokes
  • Brake levers with textured grip
  • KMC masterlink chain for super-quick removal & cleaning 
  • Frame interface for pump on the rear of seat tube
  • Mini bar-ends (With many folding bikes, it is difficult to steer with a long stem. Bar-ends solve this problem but make the bike difficult to fold. Not with our mini bar-ends - they are 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


FRAME Downtube Aluminum frame
Shock HLT-400-1 850B x100L
FORK HL Corp CH-190AMS  20" alloy  suspension fork
HANDLEBAR HL Corp. MTB-AL-153PP  W:580 alloy
HANDLEBAR STEM HL Corp with QR for height adjustment
BAR ENDS Kalloy BE-21 alloy  L:80mm
GRIPS Jie Li JL-311/312 110/80mm
SADDLE Velo VL-5006
SEAT POST HL Corp. SP-233   alloy 30.4x500mmL
CHAINWHEEL SOLID-242PP-F steel single 1/2"x3/32"*42T
CRANK Prowheel 170mmL alloy
CHAIN GUARD Plastic double guard
PEDALS Wellgo FP-7 alloy hi-impact body, foldable, 9/16" axle
CHAIN KMC Z9000, 1/2"x11/128"x116 links
TIRES Kenda F:20"x 1.5" R:20"x1.75"
RIMS HJC DA-17 alloy Double F:20"x1.50" 14Gx24H   R:20"x1.50 32H CNC
SPOKES & NIPPLES 14G*56  pcs,45#stainless  braze nipples
FRONT HUB Quando KT-MD7F ( disc front hub )
REAR HUB Quando KT-TR8R ( rear disc hub )
R/DERAILLEUR Sun Race RDM97-LD ( Long cage )
SHIFTER(S) Sun Race DLM93-9R ( trigger shifters )
Cassette Sun Race 11-32
FRONT BRAKE Tektro MINI-10  V-Brake 55MM shoes
REAR BRAKE (I) Tektro MINI-10 V-Brake 55MM shoes
BRAKE LEVERS Tektro RS392A, alloy levers w/alloy black clamp
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20 Reviews

Stephen Brazil Oct 17th 2018

Dream Bike

The 9FS is a dream bike for the get-a-way experience. I recently took my 9FS to Reno from Seattle on a train trip. when I arrived I simply unfolded my 9FS and took off to my hotel room for a few days. Don't need to be bothered with a taxi cab, just ride in style.

Stephen Brazil Sep 13th 2018

Highly Recommended

The 9FS is everything I hoped it to be. I am new to folding bikes, but when the train drops me off at my destination I won't be calling a cab. I will ride to the hotel and take another ride sightseeing. Also, I will be riding the intercity too. This yellow bike is tops and I am glad I found it. Yan does a fine job promoting these bikes and it sure sold me. I looked at more than a dozen folding bikes before I bought the 9FS and I rode several in the bike stores too. Bike friday has a good one too but Yan beats them out with the full suspension 9FS. I highly recommend this model 9FS it is sure to please.

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