Mini Bike Fest Berlin #2: 20” Madness
Part 2 of my favorite bikes from Mini Bike Fest 2026! By now, you’ve probably seen the first chapter of this multi-part series, and if not, you can catch all the entries through this link ➡️ [Mini Bike Fest 2026]. This installment turns the spotlight on the “true” 20-inch rigs: the kind of minivelos that immediately come to mind when you think of the genre. Built to travel, trick, or simply commute with style, these three creations are well worth a closer look.
Florian’s Custom BFI Minivelo
Detailed Parts List
Frameset
BFI Custom Minivelo
Groupset SRAM Rival
Crankset
Polished Rotor 3D with FSA chainring
Seatpost and Saddle
KS Dropper Post, Brooks C17
Stem and Handlebar
Custom Combo bar
Wheels
“Random hubs with random rims”
Before anything else, it’s worth noting that BFI stands for Brain Fart Industries, which might just be one of the best company names ever. Forian built this bike from scraps with one goal in mind: making it small enough to fit into an IKEA bag, and therefore avoid the extra bike fee while taking the train. The rear end is fully detachable, while the drivetrain remains intact and in one piece to keep the whole process as simple as possible. Almost every part was made, customized, or comes straight from the parts bin: from polished Rotor cranks and a custom-made combo handlebar to a Sour Bikes fork that was cut and re-welded to minivelo proportions, topped off with a pair of 9-euro Kenda tires. It’s a low-cost build, but one packed with smart hacks and clever ideas.
Adam’s Reworked Giant Stone Breaker
Detailed Parts List
Frameset
Custom Reworked Giant Stone Breaker
Groupset Shimano Zee
Crankset
Raceface
Seatpost and Saddle
KS Dropper post Brooks C15
Stem and Handlebar
Raceface stem with Sumo Cycle Heavy Duty Bar
Wheels
“Random Shimano Hubs” on Radar rims
Adam’s creation began life as a 26-inch Giant Stonebreaker MTB, and with a bit of elbow grease, a welding torch, and plenty of skill, it now lives on as a tall-man minivelo. At 193 cm, Adam explained that most minivelos, including the Velo Orange Neutrino and our own prototype, which he also tested that weekend, simply feel too small for him. So he took matters into his own hands and turned the problem into this custom build. Reworking angles and welds is far more time-consuming than starting from a pile of fresh tubes, but it can also be almost free. And while it may not look it at first glance, nearly everything here is custom, from the elongated headtube and rear wishbone to the disc brake mounts and even the fork, which still uses the original one, just shortened by a few centimeters.
Georg’s Stridsland Boomboat
Frameset
Stridsland BoomBoat
Drivetrain Pleasure Chainring
Crank
Pleasure Crank
Seatpost and Saddle
Pleasure post and custom FlyBikes Saddle
Stem and Handlebar
Pleasure seatpost and handlebar
Wheels
Koozer hubs laced to Stridsland rims
When it comes to 20-inch builds, I wasn’t expecting to see a BMX-inspired rig at first. But after a second thought, it makes perfect sense. Georg, the man behind Pleasure, produces a wide range of BMX components out of Cologne, so naturally his parts are woven throughout the build. Add a custom FlyBikes saddle reworked in Alcantara, plus a hefty set of Schwalbe Super Moto-X 2.8” tires wrapped around Stridsland 20-inch rims, and you get a setup that keeps things beautifully simple. No brakes, a loud freehub, and all the energy of a meeting point between BMX and minivelo culture.
💾: Leica SL
📍: Berlin
