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Frame Components

33 products from 12 independent makers

This is the category for structural and drivetrain upgrades: the parts that change how the bike rides, folds, or steers rather than what it carries. Steering upgrades from United Cargobike and YHWHY fix play or swap rod steering for cable; folding hardware from DAMGOOD lets an Omnium pack down smaller; ride-quality parts run to a suspension fork from Biketechnology and a carbon wheelset from Bike Ahead Composites.

Prices run from around 30 USD for a folding device to 3,600 EUR for a carbon wheelset, so this spans a quick fix and a serious performance build. These are mechanical parts, so check compatibility with your exact model and headset, and be honest about whether it's a home job or a shop fit.

Mounting accessories to the frame instead? See mounts and adapters. Protecting the frame itself? Browse protection and care.

Filter & compare 33 products →View all makers
60mm Spacer for Omnium Cargo
Frame Components

60mm Spacer for Omnium Cargo

🇩🇪Bikemachine~€24
60mm Spacer with Cable Routing
Frame Components

60mm Spacer with Cable Routing

🇩🇪Bikemachine~€28
Adapter Kickstand Bullitt
Frame Components

Adapter Kickstand Bullitt

🇩🇪Biketechnology✓ Verified~€40
Adjustable Suspension Seatpost
Frame Components

Adjustable Suspension Seatpost

🇳🇱Studio Vollebak✓ Verified~€89
Alugabel Boost
Frame Components

Alugabel Boost

Aluminium fork upgrade for more clearance

🇩🇪United Cargobike✓ Verified~€349
Bafang Frame Cover Cable Housing (DIY)
Frame Componentsthingiverse

Bafang Frame Cover Cable Housing (DIY)

◇ Communityfree
BITURBO CARGO
Frame Components

BITURBO CARGO

Carbon 6-spoke wheelset, 1,535g for the pair

🇩🇪Bike Ahead Composites~€3,599
Bullitt Shorty Bike Framekit, 2.349,00 €
Frame Components

Bullitt Shorty Bike Framekit, 2.349,00 €

🇩🇪United Cargobike✓ Verified~€2,349
Cable Steering Retrofit - CSR Kit
Frame Components

Cable Steering Retrofit - CSR Kit

Replace rod steering with cable steering

🇨🇳YHWHY✓ Verified~€350
Cane Creek Hellbender 70 Visco Headset Upper
Frame Components

Cane Creek Hellbender 70 Visco Headset Upper

🇩🇪United Cargobike✓ Verified~€179.95
Cargo Bar
Frame Components

Cargo Bar

Handlebar cross-bar for accessories

🇩🇪United Cargobike✓ Verified~€99
CARGOCA 20 Suspension Fork
Frame Components

CARGOCA 20 Suspension Fork

70mm suspension fork for a smoother ride

🇩🇪Biketechnology✓ Verified~€549
Damper Kit
Frame Components

Damper Kit

Hydraulic steering damper, 7-click adjustable

🇩🇰Larry vs Harry✓ Verified~1,710 kr
Double-Leg Kick stand for OG or Shorty
Frame Components

Double-Leg Kick stand for OG or Shorty

🇫🇷Le Petit Porteur~€78.9
Dropouts for your Bullitt
Frame Components

Dropouts for your Bullitt

generic dropout for Bullitt

🇩🇪United Cargobike✓ Verified~€50
Edelstahl Lenkgestänge für das Bullitt, 199,95 €
Frame Components

Edelstahl Lenkgestänge für das Bullitt, 199,95 €

🇩🇪United Cargobike✓ Verified
Elephant Cargo Fork
Base Plates

Elephant Cargo Fork

Turns a normal steel bike into a cargo bike

🇩🇪Apriko Bikes~€650
Federgabel
Frame Components

Federgabel

Suspension fork for a smoother ride

🇩🇪United Cargobike✓ Verified~€750
Fork for 20 inchs wheel with extra long steerer
Frame Components

Fork for 20 inchs wheel with extra long steerer

🇫🇷Le Petit Porteur~€119
Impeller - 20 "- 100x15 - Centerlock
Frame Components

Impeller - 20 "- 100x15 - Centerlock

🇩🇪Biketechnology✓ Verified~€149
Kickstand for Longtail
Frame Components

Kickstand for Longtail

🇫🇷Le Petit Porteur~€89
Muli Cargo Bike Reinforced Locking Rod Hook
Box Accessoriesprintables

Muli Cargo Bike Reinforced Locking Rod Hook

◇ Communityfree
Muli cycles Arretierstange (End Pieces)
Family Kidsprintables

Muli cycles Arretierstange (End Pieces)

◇ Communityfree
Omnium Master Folding Set (OUCH-1 + STUD-1)
Frame Components

Omnium Master Folding Set (OUCH-1 + STUD-1)

🇨🇳DAMGOOD~$130
OUCH-1 — Omnium Utter Cargo Hinge
Frame Components

OUCH-1 — Omnium Utter Cargo Hinge

🇨🇳DAMGOOD~$115
PAS Sensor Mount — Project Milliway (DIY)
Frame Componentsthingiverse

PAS Sensor Mount — Project Milliway (DIY)

◇ Communityfree
PinShim KV8
Frame Components

PinShim KV8

Headset shim for KV8 steering play fix

🇩🇪United Cargobike✓ Verified~€649
PinShim KV9
Frame Components

PinShim KV9

Headset shim for KV9 steering play fix

🇩🇪United Cargobike✓ Verified~€549
Retrofit kit for CARGOCA 20 for Bullitt
Frame Components

Retrofit kit for CARGOCA 20 for Bullitt

🇩🇪Biketechnology✓ Verified~€104
Shimano E6000 Adapter
Frame Components

Shimano E6000 Adapter

Anti-theft adapter for Shimano E6000 motor

🇫🇷Save My eBike✓ Verified~€144
Shimano EP8 Adapter
Frame Components

Shimano EP8 Adapter

Anti-theft adapter for Shimano EP8 motor

🇫🇷Save My eBike✓ Verified~€144
Steering Damper Mount (DIY)
Frame Componentsprintables

Steering Damper Mount (DIY)

◇ Communityfree
STUD-1 — Steering Tube Uncouple Device
Frame Components

STUD-1 — Steering Tube Uncouple Device

🇨🇳DAMGOOD~$30

Apriko Bikes

Marktredwitz, DE · 1 in frame components

Apriko Bikes is a one-person workshop in Marktredwitz, Germany, run by Arian Bronner. It makes the Elephant Cargo Fork, a folding cargo fork that turns an existing steel-framed bike into a cargo bike instead of replacing it. The design began as a research project at the Bauhaus-University in Weimar and is built in small handmade batches.

Bike Ahead Composites

DE · 1 in frame components

German carbon components manufacturer. Handmade carbon wheelsets, handlebars, and seatposts.

Bikemachine

Kipfenberg, Bavaria, DE · 2 in frame components

Small German maker building Omnium accessories. Transport boxes, spacers, and mounting brackets. Sold via Etsy. 2.1k sales, 4.7 stars.

Biketechnology

DE · 4 in frame components

German suspension fork specialist for cargo bikes. Makers of the CARGOCA fork designed specifically for the Bullitt.

Community / DIY

XX · 5 in frame components

Open-source and 3D-printable designs by the cargo bike community.

DAMGOOD

Shanghai, CN · 3 in frame components

Cargo bike accessories and modification kits for Omnium and Bullitt. CNC-machined aluminum folding hinges, sidepanel mods, and light mounts. Designed by riders.

Larry vs Harry

DK · 1 in frame components

Copenhagen-based manufacturer of the Bullitt cargo bike. The original long john speed machine, in production since 2009.

Le Petit Porteur

Châtillon, FR · 3 in frame components

Le Petit Porteur builds compact 20-inch cargo bikes in its own workshop in Châtillon, just south of Paris. The brand started from a gap its founders hit as buyers — everything on the market was bulky and expensive — and answers it with three CroMo frames, the OG, the Shorty and the Longtail, built entirely around standard components so any bike shop can service them. Its accessories are made for those frames and nothing else: aluminium front and rear racks, welded child cages, spoke guards, folding pegs, footplates and double kickstands, each cut for a specific frame version.

Save My eBike

FR · 2 in frame components

Motor adapters to replace dead Shimano motors with Bafang or TongSheng. Made by Botch Cargo Bikes in France.

Studio Vollebak

NL · 1 in frame components

Dutch cargo bike accessories brand. Cushions, covers, cargo nets, and practical add-ons for Urban Arrow, Lovens, Dolly, Carqon, Gazelle, and other bakfietsen.

United Cargobike

Bremen, DE · 9 in frame components

Bremen-based Bullitt specialist offering frame modifications and Pinion gearbox conversions.

YHWHY

CN · 1 in frame components

Chinese maker of precision CNC accessories for Bullitt cargo bikes, Leica cameras, and Teenage Engineering gear.

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