South Dakota Motorcycle Knowledge Test Cheat Sheet
The fastest way to review before your DPS motorcycle test — the numbers and rules most likely to appear.
🪪 Permit & License
- Motorcycle instruction permit at age 14; full endorsement at 16
- Permit: pass a vision screening and the written knowledge test
- Permit valid 1 year — ride only 6 a.m. to 8 p.m.
- Supervisor: a licensed rider 18+ with 1 year of experience, on a separate bike
- An approved Basic Rider Course waives BOTH the written and riding tests
- Permit fee $28; three test attempts within six months per fee
🔢 Most-Tested Numbers
- Pass mark80% — 20 of 25
- Following gap2 seconds minimum
- Poor conditions / night3 seconds or more
- Front brake70%+ of stopping power
- Search ahead12 seconds
- Legally intoxicated0.08% BAC adult
🪖 Helmet & Gear
- Helmet required only for riders and passengers under 18 (SDCL 32-20-4)
- Riders 18+ may legally ride without a helmet
- Eye protection required for EVERY rider unless the bike has a windshield (SDCL 32-20-4.1)
- Helmet should meet US DOT standards and fit snugly
- A face shield protects the whole face; goggles protect only the eyes
- Don't wear tinted eye protection after dark
✅ Remember This Answer
- Quick stop? Both brakes together, no locking
- Front brake? Squeeze firmly — never grab
- Curve? Slow, Look, Press, Roll
- To lean/turn? Press the handgrip toward the turn
- Swerve? Brake before or after — never during
- Eye protection? Always, unless a windshield
✅ Remember This Answer (2)
- Starts to rain? Ride in cars' tire tracks, not the center
- Railroad tracks? Cross straight, within your lane
- Tailgater behind you? Slow gently and let them pass
- Cut reaction time? Cover the clutch and both brakes
- Daytime visibility? Headlight on — 2x as likely to be seen
- Where do crashes happen? Intersections, and short trips
⚠️ Common Test Traps
- "No room to stop" → Swerve — don't just brake harder
- "Stop fastest" → Both brakes — not front alone, not rear first
- "Brake while swerving" → Wrong — brake before or after only
- "Made eye contact" → Driver still may not see you
- "Following distance" → 2 sec; 3+ in poor conditions
- "Helmet over 18?" → Optional, but eye protection still required
⚠️ More Test Traps
- "Curve ahead, too fast" → Slow before — don't brake hard mid-curve
- "Lane sharing" → Usually prohibited; cars and bikes need a full lane
- "Chased by a dog" → Approach slowly, then accelerate away
- "Carrying a passenger" → Bike responds slower — ride slower
- "Front wheel locks" → Release the front brake, then reapply
- "Crossing an obstacle" → Hit it at 90°, slow, rise on the pegs
🚨 Emergency Situations
- Tire goes flat → Hold grips, ease off throttle, brake the good tire, edge off
- Stuck throttle → Cut-off switch + pull in the clutch
- Wobble → Ease off throttle gradually — don't brake or accelerate
- Rear wheel locks → Keep it locked until stopped if straight and upright
- Chain or belt breaks → Close the throttle and brake to a stop
- Engine seizes → Squeeze the clutch and pull off the road
🌧️ Surfaces, Weather & Night
- Pavement is most slippery in the first minutes of rain
- Slippery surface: slow before it, no sudden moves, both brakes gently
- Cross parallel seams or grooves at 45° or more
- Night: ride slower and open a 3-second-plus following gap
- Night: high beam when not following or meeting a car
- Ice forms on bridges and in shaded areas
🏍️ Motorcycle Control
- Countersteer: press left grip → lean left → go left
- Use both brakes every stop — the front gives 70%+ of the power
- Corner in four steps: SLOW · LOOK · PRESS · ROLL
- Slow tight turn: lean the bike only, keep your body upright
- Pick the lane third that helps you see and be seen
- Street-legal needs lights, both brakes, signals, horn, two mirrors
🍺 Alcohol & Impairment
- Legally intoxicated0.08% BAC
- Under 210.00–0.02% BAC
- Leaves the body~1 drink per hour
- Fatal riders over limit~1 in 3
- As little as one drink hurts judgment and balance
- Refusing a breath test = mandatory license suspension
🎯 Last-Minute Before the Test
- Both brakes to stop — front brake = 70%+ of power
- Every curve: SLOW · LOOK · PRESS · ROLL
- Press the grip toward the turn to lean (countersteer)
- Brake OR swerve — never both at once
- Follow at 2 seconds — 3+ when wet or at night
- Helmet under 18; eye protection for everyone; headlight on
- SEE = Search, Evaluate, Execute · pass at 80% (20/25)
Confirm every number against the official South Dakota Motorcycle Operator Manual (MSF, 18th Edition) before test day. Full helmet law →
Source: Some test details are confirmed by the state agency; the rest reflect the consensus of major rider-education sources. dps.sd.gov states the written test must be passed at 80% or higher; the 25-question count is the third-party consensus. The manual is the standardized MSF Motorcycle Operator Manual, 18th Edition (June 2020), with a South Dakota DPS front section (Revised October 2020).