Honda SL100 Motosport
The agile, entry-level enduro that introduced countless riders to the trails between 1970 and 1973.
Production Years
1970-1973
Engine
99cc SOHC Single
Power Output
~11.5 HP
The 100cc Foundation
The SL100 was crucial to Honda's Motosport lineup, acting as the accessible gateway machine. It balanced trail capability with street legality, making it ideal for young riders or those new to dual-purpose motorcycling. This section details its core engineering and strategic role.
SOHC Single Cylinder Design
Unlike the SL175's parallel twin, the SL100 utilized a simple, reliable **single-cylinder SOHC engine**. This choice reduced weight, complexity, and manufacturing cost, contributing to its nimble handling and accessible price point. Its high 9.5:1 compression ratio provided spirited performance for its size.
Simplicity is Key
Fewer moving parts meant greater reliability and easier maintenance for novice riders.
Full Cradle Frame
The SL100 featured a robust full cradle frame, a significant departure from street frames of the era. This design protected the engine and provided the necessary stiffness and ground clearance for legitimate off-road use, cementing its "Motosport" designation.
Trail Ready Chassis
High-mounted fenders, knobby tires, and a protective frame made it trail-ready from the factory.
Model Year Explorer (K0 to K3)
The SL100 evolved subtly over four years. Select a model year below to see specific aesthetic changes, decal styles, and color options for that iteration.
SL Family Comparison
The SL100 was part of a larger family. This chart visually positions the SL100 by comparing its **dry weight** and **horsepower** against the SL125 (mid-range single) and SL175 (top-end twin).
Key Takeaway:
The SL100 offered the lightest weight for maximum agility, sacrificing peak power compared to its larger siblings.
Key Technical Data
A quick look at the fundamental measurements and engineering data for the SL100 platform.