Bespoked Osaka: Five Distinctive Bikes from Crumbworks, Morralito, Prova, Sim Works and Stayer

Five bikes at Bespoked Osaka showed how far framebuilding can stretch: from a rigid mountain bike shaped by vintage cruisers to a cargo platform with seven possible builds, a refined titanium suspension design and two very different mini velos. Their shared thread is clear in the details: each builder has treated a specific riding idea as a design problem worth solving.

Maido from Osaka! Cari and John were in attendance at the 2026 Bespoked Osaka event, where they documented a variety of bikes from the global framebuilding community. Read on for a look at the Bespoked Osaka venue and a selection of builders including Crumbworks, Morralito, Prova, Sim Works, and Stayer…

Crumbworks makes room for big tires—and small wheels

Crumbworks, the Tokyo brand led by Keita Matsumoto, put the Chunk at the center of its display. Made by the company’s in-house frame operation, Farets Bicycles, the rigid mountain bike draws on vintage cruisers, Crust and Rivendell. It clears 26 x 2.8-inch, 27.5 x 2.8-inch or 700 x 50 mm tires, and its step-through frame offers generous standover.

The sweeping top tube leaves useful space for a framebag, while the tall stack and segmented fork give the bike a distinctive profile. A 1-inch steerer accommodates quill stems, a setup chosen to allow some movement at the handlebar. Designer Zenzay, who also created the headbadge, stood with the bike at the event. Custom Hungry bags complete the build.

Crumbworks also developed a smaller-wheeled counterpart with Japanese builder Osamu Fukuda of Raizin Works. Zenzay worked with Fukuda on the Mini Chunk’s lines and stance so the compact bike would carry the Big Chunk’s visual character. Its generous tire clearance and tall stack suit flat, swept-back Magic Components KT-800 bars. Fukuda’s fillet brazing is visible across the frame; the Big Chunk is TIG-welded and made in Taiwan with Crumbworks’ manufacturing partners. The Mini Chunk is expected from Crumbworks in 2027.

Keita also presented a new Crumbworks collaboration with Babylnd Bikes, launched at Bespoked Osaka. The shirts are sold through Crumbworks stores and the Babyldn Bikes webshop.

Many thanks to Keita for the thorough explanation of the Crumbworks line and for the hangs!

@Crumbworks

Morralito’s cargo bike adapts to city use

Mexico City-based Morralito brings together architects and designers Mario Guzman and Elias Cattan with framebuilder Eli “De Bicla” Acosta. The team presented the Inicio, a cargo bike designed for urban use and offered in seven possible configurations. The display bike was fully mechanical, but its bottom bracket assembly can be removed to accommodate an electric drivetrain.

The removable front box lets the Inicio switch from cargo duty to mini velo form. Owners can choose a smaller or larger box, keep the long arrangement shown at the event, or use a more collapsible, stowable configuration. That range gives the frame a practical appeal: one platform can serve different loads and storage needs.

The paint takes cues from the mountains around Mexico City and the city’s vivid visual culture. At Bespoked Osaka, the Inicio received the Best Utility Bike award. More details are available from Morralito.

@MorralitoBikes

Prova’s Senza gains an in-house swingarm

Melbourne’s Prova develops models through repeated building, riding and revision. The Senza full-suspension mountain bike, first documented at the 2024 Made Bike Show, now carries a swingarm designed by Mark Hester. Earlier versions used a rear end supplied by 3V0; the current build retains the 3V0 suspension layout while replacing that component with Prova’s own design.

Mark described the newer version as a substantial improvement and said he feels more confident offering the model with the in-house swingarm. Producing it takes longer: the first prototype took 40 minutes to build with an Asia-produced 3V0 CNC aluminum rear end, while the Prova part adds setup and welding time. That extra work reflects the Hesters’ focus on refining the bike around their own design priorities.

@ProvaCycles

Sim Works dresses the Doppo Ronin in limited-run parts

Nagoya bike shop Circles and its component label Sim Works brought a Golden Moss Doppo Ronin to Osaka. The Doppo name dates to a touring bike launched at NAHBS in 2016; later versions expanded into mountain, adventure and fendered road bikes. The Ronin continues that evolution with a build that highlights the latest frame colorway alongside two limited-edition component collections.

The Japan-made Sunrise collection includes Nitto and MKS parts: the Beatnik Seatpost, Tomboy Stemcap and Topcap, SimDrop, and SimWorks by MKS pedals. Sim Works developed its Sunset collection with Paul Component in Chico, California. Limited to 30 sets, it includes a Paul bottle opener, Short Pull Levers, Klamper disc brakes and Motolite V-brakes.

@Circles @SimWorks

Stayer and friends build two mini velos around travel

London workshop Stayer Cycles arrived with a 20-inch full-suspension mini velo made with Sentient Works, Wizard Works, and collaborators Sam, Willow, Tullen, Val, Harry and Ve. The project began with a direct design prompt: what would a full-suspension BMX feel like? The resulting 20-inch BMX trail bike was presented packed as a travel companion, with a frame built by Sam and Tullen, paint by Val and bags by Wizard Works.

Small-wheeled bikes can suit tight storage and travel; in Japan, riders can also pack bikes for train journeys. This build’s Brompton Carrier Block system is integrated at the head tube for quick bag removal. Val and Vee made a flame-decorated Leyline Brompton Bag. Hope, Manitou, Brompton and Schwalbe also contributed parts to the project.

@Stayer @SentientWorks @WizardWorks

Stayer also made a travel mini velo for Marlon Plein of Babyldn. To reduce weight and stiffen the rear, Sam welded aluminum chainstays and seatstays, then attached them to the front triangle with clevises. The truss fork has a cable stop built into its brace, intended to give the cantilever brakes consistent modulation and control. MKS, Paul Component and White Industries supplied parts.

@Stayer @BabyLdn

The Radavist thanks Circles Japan for sponsoring its 2026 Bespoked Osaka coverage and independent reportage.

The post 2026 Bespoked Osaka Picks 04: Crumbworks, Morralito, Prova, Sim Works, Stayer appeared first on The Radavist.