Mendeola Transaxles

What Mendeola Transaxles does

Mendeola Transaxles is a San Diego-based, private manufacturer of custom sequential and synchromesh transaxles targeted at mid-engine sports car builders, kit-car constructors, and professional/amateur racers. The company's core products are the S5R drum-activated dog-ring sequential 5-speed, the SDR-5 synchromesh 5-speed (offered in 109 engine combinations), the S5B-RR road-race sequential variant, and supporting rebuild services covering SDR5, S5R, and S5-LSR models. Differentiated engineering features include complete in-house gear-set manufacturing using 9310 VAR nickel alloy with a proprietary heat-treat and shot-peening process, 100% Cad-Cam-optimized tooth profiles, A-356-T6 virgin aluminum castings, and 10-inch spiral bevel ring-and-pinion designs rated for 500-1500+ HP applications.

The business operates on a direct-to-consumer model with COD terms, 50% deposits, no open accounts, and FOB shipping from a single San Diego facility (6935 Camino Maquiladora). Revenue is generated through hardware sales of finished transaxles priced between $9,250 and $16,500 depending on model and ring-and-pinion ratio, plus ancillary rebuilding services priced at $750-$950 (labor and magnaflux only). The company targets a narrow, enthusiast-driven segment including Factory Five Racing GTM builders, vintage-mid-engine conversions (Corvair, Karmann Ghia), and motorsports competitors across road racing, drag racing, autocross, and land-speed-record disciplines. Demand validation is anchored by high-profile customer builds and published results, including a 264 mph El Mirage land speed record and a Pirelli World Challenge / NASA endurance-racing overall win at Willow Springs.

Operationally, the firm is small (11-50 employees), privately held with no disclosed external funding, and relies primarily on word-of-mouth within racing communities, automotive media features (Good-Guys, BFGoodrich Garage), and direct email/phone sales relationships. Distribution is entirely direct, with international orders accepted on a customer-pays-duties basis. The moat is grounded in proprietary manufacturing know-how, in-house capability that few North American competitors replicate, and four decades of racing experience informing design decisions, rather than scale, brand awareness, or digital reach.

Name

Mendeola Transaxles

Legal name

Mendeola Transaxles

Website

https://mendeolatransaxles.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Mendeola Transaxles is a San Diego-based manufacturer of custom in-house-built sequential and synchromesh transaxles for mid-engine sports car builders, kit-car constructors, and amateur/professional racers, supplemented by in-house rebuild services.

Ownership category

akta.pro rank

Product category

Performance Transaxles / Racing Gearboxes

NAICS

Motor Vehicle Transmission and Power Train Parts Manufacturing (33635)

akta.pro primary industry

Transmission & Transaxle Manufacturing (Manual/Automatic/DCT/CVT) (IMACAHAE)

akta.pro secondary industries

Transmissions & Transaxles Rebuild/Remanufacturing (Automatic/Manual/DCT/CVT) (TLAKALAB), Engine & Powertrain Repair (Transmission/Drivetrain) (TLAKAAAE), Passenger Vehicle Transmission & Drivetrain Systems Manufacturing (ICE) (IMACAAAG)

Keywords

• Sequential transaxles
• Synchromesh transmissions
• Mid-engine drivetrains
• Custom gear manufacturing
• Motorsport gearboxes

Headquarters

HQ city

San Diego

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Transaxle Sales: Sale of manufactured transaxles including S5R sequential and SDR-5 synchromes h models. Products are sold as finished units with various gear ratios and configurations for different vehicle applications.
2. Rebuild and Repair Services: Transaxle rebuilding services for all Mendeola model gearboxes including complete teardown, jet cleaning, magnetic particle inspection, and rebuild. Services available for SDR5, S5R, and S5-LSR models.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Mendeola Transaxles designs and manufactures custom sequential (S5R) and synchromesh (SDR-5) 5-speed transaxles for mid-engine sports car applications, with all gear sets produced in-house using 9310 VAR nickel alloy and proprietary heat treat processes. The company also offers complete transaxle rebuilding and maintenance services for SDR5, S5R, and S5-LSR models, supporting high-horsepower builds up to 1500 HP.

Product overview

Mendeola Transaxles manufactures high-performance sequential and synchomesh transaxles for motorsports applications. The product lineup centers on two main transaxle models: the S5R (sequential dog-ring 5-speed) and the SDR-5 (synchromeshes 5-speed), both supporting various horsepower ratings and compatible with multiple engine bellhousing patterns (Chevy LS, Ford small block, Kennedy Adapters). The company also produces the S5B-RR road race sequential variant and offers rebuild services for all models. All gear sets are manufactured in-house using proprietary heat treatment processes. Transaxles target mid-engine sports car applications in the 1800-3200 lb range with power outputs up to 650 HP.

Differentiator

Problem solved

Functional benefit

Products and services

• S5R Sequential Transaxle Drum-activated dog ring sequential 5-speed transaxle with 100% optimized tooth forms, single rail shift system, 10 inch spiral bevel ring & pinion, hydraulic self-adjusting TO bearing, and Salisbury clutch plate ramp style LSD, designed for high-performance mid-engine sports car and racing applications.
• SDR-5 Synchromesh Transaxle 5-speed synchromesh transaxle with 100% optimized tooth forms, 10 inch spiral bevel ring & pinion, internal self-adjusting hydraulic thru-out bearing, cone clutch limited slip, and thru hardened drive shafts, supporting 109 different engine combinations for mid-engine sports car builds.
• S5B-RR Sequential Transaxle Road race-oriented sequential transaxle available with Porsche pattern bellhousing option, used in Factory Five GTM supercars and similar applications supporting high-horsepower builds up to 600+ HP.
• Transaxle Rebuilding Services Complete rebuild services for all Mendeola model gearboxes including magnetic particle inspection, complete teardown, jet cleaning, and magnaflux inspection; covers SDR5, S5R, and S5-LSR models at the San Diego facility.
• In-House Gear Sets Proprietary gear sets manufactured in-house using 9310 VAR nickel alloy with custom heat treat process and shot peening, including helical, spur, and spiral bevel designs for ring & pinion applications.

Quantifiable outcome

• 264 mph land speed record achieved with S4B modified transaxle
• +2 more outcomes

Named customers7 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Dobberton PerformanceminorOthersReferenced as a contact for newest street car chassis tech. Listed as a resource for customers seeking additional expertise in street car chassis technology and builds.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Others

• Quartermaster: Manufacturer of high-performance clutches, flywheels, and driveline accessories for motorsport and high-performance street applications. Adjacent to Mendeola as a complementary supplier of clutch and driveline components rather than a direct transaxle competitor.
• Factory Five Racing: US-based manufacturer of kit cars (GTM, Type 65 Coupe, Roadster) that uses Mendeola transaxles in its GTM supercar builds. Adjacent ecosystem participant - a customer rather than competitor, but a key downstream channel that drives Mendeola unit demand.

Direct peers

• Tractive Technology: Netherlands-based specialist in Porsche racing transmissions and sequential gearboxes for GT, prototype, and club racing. Comparable in targeting mid-engine and rear-engine racing applications with sequential gear technology.
• Liberty Advanced Automotive: US-based custom transmission and gear specialist serving motorsport, hot rod, and pro-touring builders. Comparable in US footprint, custom build model, and target customer of high-performance automotive enthusiasts and racers.
• Hewland Engineering: Historic UK manufacturer of racing gearboxes and transaxles with deep motorsport heritage across F1, sports car racing, and club racing. Closely comparable in product category (racing transaxles), engineering approach, and customer overlap in the pro/club racing market.
• Sadev: French manufacturer of sequential gearboxes, differentials, and gear sets for motorsport, including rally, hillclimb, and circuit racing. Comparable in sequential transaxle product line, in-house gear manufacturing, and high-performance motorsport customer base.
• Drenth Racing Gearboxes: Dutch manufacturer of sequential dog-ring racing gearboxes for professional motorsport and high-end kit cars. Directly comparable in product (sequential racing transaxle), customer profile, and price-point positioning.
• Quaife Engineering: UK-based manufacturer of high-performance automotive gear sets, differentials, and sequential gearboxes for motorsport and road car applications. Directly comparable to Mendeola in targeting the same enthusiast and racing customer base with custom in-house manufactured precision gear products.
• Holinger Engineering: Australian motorsport transmission specialist producing sequential gearboxes, transfer cases, and driveline components for race teams and high-performance builders. Closely comparable in product category, customer profile (racing/kit-car), and custom-build business model.

Broad incumbents

• TREMEC: Large-scale US-based manufacturer of manual transmissions, transfer cases, and driveline components for OEM and aftermarket automotive applications. Comparable as a transmission manufacturer but operates at much higher volume and broader portfolio than Mendeola's niche mid-engine focus.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Mendeola Transaxles