Arch 1s

Maintenance specs for 1 variant of the Arch 1s — from 2020 to 2026.

2020–2026 Arch 1s

2032cc V-Twin OHV Air-Cooled (S&S T124 engine, sport configuration) (T124) · Belt

122 hp / 130 lb-ft

Weight20W-50

Capacity4 qt

Type6-Speed Manual

FluidJASO MA2 75W-90 GL-4 Gear Oil

Drain & fill0.95 qt

Full capacity0.95 qt

TypeDOT 4

Tank4 gal

TypePremium 91

Front120/70-ZR17

Rear200/55-ZR17

Pressure (front)36 PSI

Pressure (rear)42 PSI

Oil change3,000 mi

Trans service10,000 mi

Brake fluid12,400 mi

Spark plugs10,000 mi

Timingchain (no scheduled replacement)

Air filter10,000 mi

Drive belt20,000 mi