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Powersports Business • September 2026 • 37
Figure 1. The OE-to-aftermarket ratio at service, by make. Share of customer-paid service-parts revenue that is OE( navy) versus aftermarket( orange). The 10 largest makes in each segment, ordered by revenue; grey is the brands’ share of the segment’ s service-parts revenue on a dollar basis.
Figure 2. The OE-to-aftermarket ratio at time of unit sale, by make. Share of parts revenue attached on the unit deal that is OE( navy) versus aftermarket( orange). The 10 largest makes in each segment, ordered by revenue; grey is the brand’ s share of the segment’ s unit-sale parts revenue on a dollar basis.
completely different accessory business depending on the franchise on the board.
The brand split also sheds light on something potentially surprising. Segment-wide, the aftermarket takes a larger share of the parts dollars in the service bay than in the showroom: about 32 % of street serviceparts revenue against 27 % at delivery, and 41 % against
37 % off-road. Part of the reason is mix. The OE-loyal touring and premium brands account for roughly two thirds of street accessory revenue at delivery, while Yamaha, Suzuki, and Kawasaki together account for under a fifth, so the sale-lane average lands well below what Yamaha and Suzuki alone would suggest. The ratio is not only a brand story; it is also a parts story,