Kurbelix

What Kurbelix does

Kurbelix GmbH is a German direct-to-consumer e-commerce company founded in 2001 by Lukas Kulakowski, a master bicycle mechanic (Zweiradmechaniker-Meister), that specializes in the retail and assembly of bicycle wheels and wheel components for the German-speaking market. The company's principal storefront at kurbelix.de offers a comprehensive range of front wheels (Vorderräder), rear wheels (Hinterräder), complete wheel sets (Laufradsätze), reinforced "extra-stable" wheels, and standalone rims and hubs, covering E-Bike/Pedelec, MTB, Trekking/City, Racing (Rennrad), Gravel, and Cargo (Lastenrad) bike categories with multiple brake types (disc, rim, drum, roller, coaster), axle standards (quick release, 12/15/20mm thru-axle, solid axle), and cassette standards (HG, Micro Spline, SRAM XD/XDR, Campagnolo). Kurbelix distributes its own KX brand alongside components from DT Swiss, Mavic, SON, Rohloff, Shimano, Ryde, Rodi, and other manufacturers.

The company's core technical capability is its in-house wheel assembly process, which uses machine-controlled spoke tensioning on modern Einspeichmaschinen to deliver consistent spoke tension and quality across all assembled wheels, supported by a Custom Wheel Building Service that lets buyers request non-catalog configurations. Kurbelix generates revenue primarily through one-time e-commerce hardware sales at unit prices ranging from approximately 98 EUR (entry-level DT Swiss configurations) to over 200 EUR (premium KX builds), with custom quotes for bespoke builds. The company markets via SEO-optimized category pages and a content blog on bicycle components, and serves end consumers, cycling enthusiasts, and bicycle repair shops across Germany and the broader German-speaking region. The firm is founder-owned, bootstrapped, with no disclosed external institutional investment, parent company, or subsidiaries, and employs between 11 and 50 staff.

Name

Kurbelix

Legal name

Kurbelix GmbH

Website

https://kurbelix.de

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Kurbelix GmbH is a German e-commerce retailer founded in 2001 that specializes in machine-spoked bicycle wheels and wheel components, serving E-bike, MTB, trekking, racing, gravel, and cargo bike consumers across the German-speaking market through its own KX brand and distributed manufacturers.

Ownership category

akta.pro rank

Product category

Bicycle Wheels and Components Retail

NAICS

Motorcycle, Bicycle, and Parts Manufacturing (336991)

SIC

Motorcycles, Bicycles & Parts (3751)

akta.pro primary industry

Bike Parts & Components Retail (CRAMAHAB)

akta.pro secondary industry

Cargo & Utility Bike Retail (CRAMAHAF)

Keywords

• Bicycle wheels
• Wheel building services
• E-bike components
• Bicycle parts retail
• Custom wheel assembly

Headquarters

HQ city

Lachendorf

HQ country

Germany

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Bicycle Wheel and Component Sales: Revenue is generated through one-time product sales of bicycle wheels, wheel sets, and components via e-commerce. The company sells branded wheels and components from manufacturers like KX, DT Swiss, Ryde, Rodi, Mavic, SON, Rohloff, Shimano, and others. Products include front wheels, rear wheels, wheel sets, hub dynamos, and extra-stable wheels for heavy-duty applications.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Kurbelix is an online retailer and wheel builder specializing in bicycle wheels (front wheels, rear wheels, and complete wheel sets) and wheel components (hubs, rims) for all major bike categories including E-Bike/Pedelec, MTB, Trekking/Citybike, Rennrad, Gravelbike, and Cargo bikes. All wheels are professionally assembled using machine-controlled spoke tensioning (Einspeichmaschinen), and the company also offers a custom wheel building service, alongside its own KX brand wheels and components from third-party manufacturers such as DT Swiss, Mavic, Rohloff, Shimano, and SON.

Product overview

Kurbelix is a German e-commerce company founded in 2001 specializing in bicycle wheels (Laufräder) and wheel components. The company operates as both a retailer and wheel builder, offering a comprehensive portfolio centered on Vorderräder (front wheels), Hinterräder (rear wheels), and Laufradsätze (complete wheel sets). Their product range spans standard and extra-stable configurations across multiple bicycle categories including E-Bike/Pedelec variants (E-Trekking, E-MTB, E-Cargobike, E-SUV, E-Gravelbike), Trekking/Citybike, MTB/Mountainbike, Rennrad, Gravelbike, Lastenfahrrad/Cargobike, and Bikepacking. They offer both pre-built wheels and custom wheel assembly services using machine precision spoke insertion. The company sells components including rims (Felgen) and hubs (Naben) from their own KX brand as well as third-party brands like DT Swiss, Mavic, Rohloff, Shimano, SON, and others. They also provide specialty wheels with hub dynamos and hub gear systems for internal shifting.

Differentiator

Problem solved

Functional benefit

Brands

• KX: Own brand of wheels, wheel sets, rims, and hubs manufactured by Kurbelix, sold exclusively through the Kurbelix online shop

Products and services

• Front Wheels (Vorderräder) Front wheels for bicycles available in sizes 20-29 inches, with disc brake, rim brake, roller brake, and drum brake compatibility, and quick-release as well as thru-axle standards (12mm/15mm/20mm and Vollachse). Intended for cycling enthusiasts across E-Bike/Pedelec, MTB, Trekking/Citybike, Rennrad, Gravelbike, and Cargo bike categories.
• Rear Wheels (Hinterräder) Rear wheels for bicycles supporting chain transmission, hub transmission (Nabenschaltung), coaster brake (Rücktrittbremse), and single-speed configurations, with cassette compatibility including HG, Micro Spline, SRAM XD/XDR, and Campagnolo for 7-13 speed systems. Built for E-Bike, MTB, Trekking, Rennrad, Gravel, and Cargo bike use.
• Wheel Sets (Laufradsätze) Complete matched wheel sets (front and rear) for various bicycle types, available with or without hub dynamos, in multiple sizes (20-29 inches), and compatible with disc brakes and rim brakes across E-Bike, MTB, Trekking, Rennrad, Gravelbike, and Cargo bike categories.
• Extra Stable Wheels (Extra stabile Laufräder) Reinforced wheels with reinforced spokes designed for heavy loads, high body weight, or cargo bikes. Engineered to minimize risk of rim or spoke breakage under extreme stress conditions.
• E-Bike Wheels (E-Bike Laufräder) Specialized wheels designed for electric bicycles including E-Trekking, E-MTB, E-Cargobike, E-SUV, and E-Gravelbike categories. Engineered to handle the higher torque and weight associated with electric motor assistance.
• Front Wheels with Hub Dynamo (Vorderräder mit Nabendynamo) Front wheels equipped with hub dynamos from brands like Shimano and SON for integrated bicycle lighting without external batteries. Available for various axle standards and brake configurations including Schnellspanner, Steckachse 12mm/15mm, and Vollachse.
• Rear Wheels with Hub Gears (Hinterräder mit Nabenschaltung) Rear wheels featuring integrated hub gearing systems including Shimano Nexus, Shimano Alfine, Shimano Premium, Rohloff Speedhub (14-speed), and Sturmey Archer for internal gear shifting.
• Rims (Felgen) Bicycle rims sold individually from brands including KX, DT Swiss, Ryde, Rodi, Ambrosio, Gora, and Mavic. Available in various widths and profiles for different tire sizes and riding disciplines.
• Hubs (Naben) Wheel hubs from brands including KX, DT Swiss, Formula, Fastace, Giant, Novatec, Shimano, Rohloff, and Miche. Available as front hubs, rear hubs, or hub dynamos with various axle and brake mount standards.
• Custom Wheel Building Service Custom wheel assembly service where customers specify their requirements and receive a wheel built to their exact specifications. All wheels are machine-spoked using modern precision spoke machines (Einspeichmaschinen) with quoted pricing per build.

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Bike24: One of the largest German online bike retailers, offering complete bikes, components, apparel, and accessories across all categories. Significantly larger scale than Kurbelix with broader assortment, but competes in the same wheel and component categories.
• Chain Reaction Cycles: Large international online bike retailer headquartered in Northern Ireland with global shipping. Overlaps with Kurbelix in wheel and component categories at substantially larger scale.
• BikeDiscount: Large German online bike retailer with a wide assortment of bikes, parts, and accessories at competitive prices. Overlaps with Kurbelix in the wheel and component category but serves a broader mainstream customer base.
• Wiggle: Major international online cycling and tri-sports retailer operating across Europe. Competes with Kurbelix in wheel and component categories but at much larger scale and with broader sporting goods assortment.
• Brügelmann: Long-established German online bike retailer offering complete bikes, components, and accessories. Overlaps with Kurbelix in wheel and component sales but operates at significantly larger scale and with a broader product portfolio.

Direct peers

• R2-Bike: German online bike retailer offering components, wheels, and complete bikes across mainstream and premium price points. Overlaps with Kurbelix in wheel and component retail for road, MTB, and trekking categories.
• bike-components: German online retailer specializing in high-end bicycle components, parts, and wheels. Operates a similar DTC e-commerce model with deep technical content, making it the closest direct competitor to Kurbelix in the German bike parts market.
• Hibike: German online bike parts retailer offering components, wheels, and accessories with a curated, technically-oriented catalog. Comparable to Kurbelix in target customer (enthusiasts and workshops) and product focus on premium components.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/kurbelix-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Kurbelix