Downtube Dyan Preliminary Review

Unexpected bonus: the Downtube Dyan's rack can hold a standard-sized panner.

Meet my new folder, a Downtube Dyan! 24" wheels, modern components, and most beneficial, the bicycle is upgradeable.

I've owned and loved my Dahon Boardwalk. It was an easy entry into the folding bike universe. It taught me that small wheels allow versatile travel. I've done many Amtrak adventures, folded the bike into the front seat of a Miata, cruised around Montreal with Adele, stuffed it many times inside our vehicle, opening up the rear rack to handle family bikes. I've embraced its comfortable steel geometry - the main reason I've ridden it for 8 years.

I was eventually ready for new small-wheeled horizons, something that handles a touring load on varied terrain, yet still falls under Amtrak's reservation-free dimensions. I missed snagging a used Dahon Archer, checked specifications on a Dahon Briza, Tern Node and their multigeared 20" counterparts, and even investigated a Bike Friday Diamond Llama. The latter was on a 20% discount, but I still couldn't swallow the price tag. The used market is elusive. There are numerous budget folders - like the Boardwalk - or Bromptons and Bike Fridays fetching premiums. I've known Downtube's brand for a while - they make lower-cost, well-equipped folders because they market and ship directly from Greensboro, NC. After the Rivendell Clem fiasco, I swore I'd never buy a bike untested, and yet here I am!

The handle post is adjustable - I have it slammed, in the shortest position. Slightly curved with some rise, handlebars can be pivoted to adjust position, plus included bar ends, clamped in a removable faceplate stem should I need a bar change. It's the thoughtful features that sold me. Click shifting, included bell, rubberized grip area on the brake lever - very comfortable! The list goes on.

There's a top tube-mounted braze-on for a waterbottle rack, a head tube 3-hole mount for baggage or a rack, quick-release wheels, an included rear rack, and fenders. I've verified through our bike mechanic that I can upgrade the 1.5" rubber to 1.75", with existing ample fender clearance. 

This pannier has a velcro-type attachment, securing the bag to the fender stay.

I was pleasantly surprised to have a sturdy rack that can hold a full-size pannier without heel strike. The rack's large tubing, however, fits only panniers with larger hooks. I presume the rack is set up more for top loads because of one axle stay with beefy tubing. With wider hook bags, a J-hook could be added to the bolt support for a typical connection.

Oh yeah, there's a derailleur hanger too, and a 10x cassette. I have 3 gears lower than the Dahon, and I've been assured we can go even lower.

After one ride, I swapped out the all-metal pedals and wide saddle for the Dahon's fine-tuned, comfortable arrangement.

I think I did pretty well with this 24" wonder. I've ridden the Dyan several times. It's zippy!