Across
1. Valvetrain parts, perhaps
5. S in tire’s M+S marking
9. Buckets and benches
10. Engine output, in a way
11. One end of combination wrench
12. Vintage-vehicle revitalizer
14. Two-wheel personal-transporter brand
16. Franchised vehicle vendor
19. Mechanics’ conversations (4,4)
20. Hub protrusion
23. Interior door feature
24. Roof with removable panel
25. Parking areas
26. Custom-bike creations
Down
1. Reciprocating engine parts
2. Master and ____ cylinders
3. Car corrosion
4. Compression-ignition engine
6. Shifter selection
7. Coolant component
8. Shuddering clutch action term
13. Old-car noises, often
15. Rubber donut in firewall
17. Twist-off cooling-system parts (3,4)
18. Foot control, sometimes
19. Kill engine by mistake
21. Harley trike wheel count
22. Octagonal-sign order
