8C Internal hub chain drive folding bike

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8C folding bike
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Light aluminum frame, suspension fork, Sturmey Archer 8sp internal hub, stainless steel chain, cold forged cranks, machined sidewall rims, disc front hub, rack, kickstand, fenders, head tube bag interface
8C Blue Folding Bike Logo

The Downtube 8C is the economical version of the 8H, the two bikes are nearly identical. The differences are in the drivetrain, the 8C uses a Sturmey Archer 8sp internal hub, a KMC stainless steel chain and standard chainring/cogs.  The maintenance-free Sturmey Archer 8-speed internal hub is completely sealed from damaging dirt and grime. The 8C's continues the 8H's legacy of bike excellence has been greatly enhanced with additional design upgrades. If you are a boater, RVer and commuter, you will simply love this bike. Only Downtube offers an 8sp internal hub folding bike for under $1000. The new models have a disc front hub,  39T front chainring & 25T rear cog for a perfect gear range on the 20" wheels. What does all of that mean? You will be able to climb any gear easily and the bike will top out at a little over 20mph.  It also gives you clean and quiet riding without the fuss of a rear derailleur. Don't forget that it folds up for compactness, and security.

So that you could enjoy the ride, we included a lightweight aluminum frame, heavy duty rack, suspension fork, kickstand, and lightweight fenders. Plus we added high quality brake levers and Tecktro V brakes? We even provide high end double wall machined-sidewall rims, which make the bike able to stop on a dime, since the brakes prefer to bite down on a textured surface.

If you use your bike to commute, we thought about you too. We added a water bottle braze-on, but the cage is not included. And we also added an interface for the headtube bag. Additional mini-bar ends and high-rise handlebars give the rider more edge by customizing the fit without having to interfere with the fold.



  • 8sp Sturmey Archer internal hub 
  • stainless steel KMC chain 
  • Preload adjustable transarch Zoom suspension fork
  • 8C uses Sturmey Archer gripshift 
  • Lightweight and easy to fold alloy pedals
  • Upgraded cold forged crank
  • Machined sidewall rims
  • Longer Seat tube to allow for taller riders
  • High-rise bars
Folded size: approx. 14" x 24" x 33"
Weight: 30 lbs(w/o rack, kickstand, fenders, pedals, saddle )
Folding time: 10 seconds
Rider Height: 4'9" - 6'3"
Rider Weight 255lbs max.
Frame: Xtra-Light Aluminum frame
Fork: Zoom transarch designed fork with disc tabs and alloy lowers
Saddle: Gel saddle
Seat post: Kalin 500 mm Aluminum seat post
Brakes: Tektro V brakes
Brake Levers: Tektro levers
Front wheel: Quando 24H QR hub w/ machined V shaped rim
Tires: Kenda 20 x 1.5" front and 20 x1.75" rear
Shifters: Gripshift 8sp or trigger shifter 11sp
Cranks: Prowheel cranks with 39T/25T gear combo
Gear Inches: 29 ( 1st ) - 94 (8th )
Belt/Chain: stailess steel KMC chain
Pedals: Folding right and left

8C Features:

8C folding and Unfolding:

8C Unboxing Video:

One year limited warranty. Two year warranty on the drive train through Sturmey Archer.

30 day satisfaction guarantee on all Downtube bikes.

Please see our terms and conditions for details.

1 Review Hide Reviews Show Reviews

  • 4
    Nice Bike

    Posted by James Kirby on Sep 4th 2017

    Delivered on time. Had to adjust the hub but other than that we unfolded them and started tiding. Seem to be good quality bikes. We live on a boat so only time will tell how they will fare in the salty air. All in all very happy with them.