BMW R4 Series 5 vs BMW R4 Series 3 (1937)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the BMW R4 Series 5stacks up against the BMW R4 Series 3. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecBMW R4 Series 5BMW R4 Series 3
Model year19371934
Price
Engine398 cc398 cc
Horsepower14 hp14 hp
Fuel capacity3.2 L3.2 L
Fuel typepetrolpetrol
Front brakesExpanding brake (drum brake)Expanding brake (drum brake)
Rear brakesExpanding brake (drum brake)Expanding brake (drum brake)
Tires3.50-26.00 / 3.50-26.00 3.50-26.00 / 3.50-26.00

BMW R4 Series 5 vs BMW R4 Series 3 — which should you buy?

Picking between the BMW R4 Series 5 and the BMW R4 Series 3 usually comes down to the numbers you care about most. On paper, the BMW R4 Series 5 brings 14 hp, while the BMW R4 Series 3 counters with 14 hp.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: