Understanding the Rules for E Bikes on RAGBRAI
RAGBRAI allows electric bikes, but only pedal-assist models with a maximum assisted speed of 20 mph. That means Class 1 e-bikes are permitted, while Class 3 e-bikes (which assist up to 28 mph) are not. Throttle-only Class 2 e-bikes may be allowed only if the throttle is disabled or the bike is used exclusively in pedal-assist mode. If you show up with a Class 3 or an unmodified throttle bike, you risk being turned away at registration—there’s no appeal process on the starting line.
What changes by year and registration timing: RAGBRAI publishes its official e-bike policy each season, typically before registration opens. The rules are not permanent; they can tighten or loosen depending on organizer discretion and insurance requirements. If you registered in a prior year with a bike that was then compliant, a policy update could disqualify that same bike the next year. Always verify the current year’s rules on the official RAGBRAI site before you buy a ticket or ship your bike to Iowa.
Which E-Bike Classes Are Allowed on RAGBRAI?
Class 1 – Allowed
Pedal-assist only, motor cuts out at 20 mph. This is the only class you can ride without worrying about rule changes. No modifications needed.
Class 2 – Conditionally Allowed
Throttle capable up to 20 mph. RAGBRAI’s written rules have historically required that the motor provide assistance only while pedaling. If your Class 2 has a throttle, you must either:
- Physically disable the throttle (remove it or disconnect the wire), or
- Commit to never using it during the ride.
Verification step you can do right now: Check the sticker on your bike’s motor or frame. Most Class 2 e-bikes are labeled with their class and wattage. If the label says “Class 2” and the motor is rated above 750 watts, you’re out of compliance regardless of throttle use. If you removed the throttle but the bike still has a Class 2 controller, an organizer may still flag it—keep the documentation from the manufacturer showing the modification.
A realistic mismatch to watch for: Some Class 2 bikes come with a walk-assist mode that moves the bike at 3–5 mph while you walk beside it. That is not the same as throttle operation while riding and is generally accepted. But if your walk-assist engages when you accidentally bump the button while riding, you could be seen as using a throttle. Disable walk-assist entirely if you can’t lock it out through the display settings.
Class 3 – Not Permitted
Even if you ride below 20 mph, the motor’s ability to assist above that threshold disqualifies the bike. There is no gray area here. If you own a Class 3, do not bring it to RAGBRAI unless you have a certified speed-limiter modification that reduces the assist to 20 mph and you can prove it at check-in.
Speed and Motor Limits
The 20 mph assisted-speed limit applies on all paved roads and gravel sections of the main route. That means your motor must stop providing power once you hit 20 mph, even if you’re pedaling hard. After that, you’re on your own effort.
What enforcement looks like in practice: At registration, volunteers may ask you to pedal slowly across a flat stretch while they watch the motor behavior. Road marshals and local law enforcement also patrol the route. If they observe an e-bike accelerating past traditional cyclists on a flat road, they may stop you to check your bike. A warning can escalate to disqualification from the ride if the bike can’t be limited.
The trade-off you need to know: Even if your bike is technically Class 1, some aftermarket tuning devices or display settings can override the 20 mph cutoff. If your e-bike was originally built as Class 1 but you installed a chip or software that raises the assist speed, that bike is now non-compliant. RAGBRAI organizers have the right to inspect any bike they suspect has been modified. There’s no way to argue “I only use it within the limit” if the motor’s capability exceeds 20 mph.
Battery Range and Real-World Limits
RAGBRAI daily routes range from about 40 to 80 miles, with significant hills on some days. If your battery’s rated range is less than the day’s distance (accounting for your weight, wind, and terrain), you have two options:
- Carry a spare battery. Swap during a lunch stop or rest area. Make sure the battery is securely mounted and meets airline/ground transport rules if you’re flying to Iowa.
- Plan charging stops. Overnight towns often have limited outlets at churches, schools, or host homes. Bring a charger and a multi-outlet extension cord. Charging at campgrounds or hotels may require early arrival to claim a spot.
What happens if your battery dies mid-ride: RAGBRAI has sag wagons for mechanical breakdowns, but they are not required to carry your dead battery. You will be towed or transported, but you cannot recharge on the truck. Your ride ends for the day. If you are relying on pedal power alone after the battery dies, you’ll be pushing an extra 40–60 pounds of motor and battery weight on hills. Test your battery’s real-world range on a similar ride before RAGBRAI. Many e-bike manufacturers overstate range by 20–30 percent. A typical 500 Wh battery might give you 30–50 hilly miles on medium assist. If your commute test shows less than 45 miles on medium assist, plan for a spare battery or be prepared to charge at every available stop.
Registration, Fees, and Age
E-bike riders register exactly like everyone else on RAGBRAI. There is no separate e-bike category or additional fee. You need:
- A valid RAGBRAI registration (individual or team).
- Signed waiver.
- Payment of the standard registration fee.
All riders, e-bike or not, must be at least 16 years old to ride alone. Riders 15 and under must be accompanied by a parent or guardian. If you are under 17, Iowa law requires a helmet. RAGBRAI strongly recommends helmets for everyone regardless of age.
Safety and Etiquette
| Rule | Why It Matters |
|---|---|
| Ride single file on roads | Roads are narrow with vehicle traffic and thousands of cyclists. Two-abreast e-bikes create dangerous blockages. |
| Pass on the left, call out | E-bikes accelerate faster than many traditional bikes. Say “On your left” or use a bell before passing. Do not pass without warning—an unexpected e-bike passing at 18 mph can startle a traditional rider and cause a swerve. |
| Obey all traffic signs | RAGBRAI is not a race. Stop at intersections, follow local traffic laws. |
| Helmet required for under 17 | Iowa law requires helmets for all cyclists under 17. |
| No noise-canceling headphones | You need to hear vehicles, ride marshals, and other cyclists. One earbud at low volume is acceptable; two in-ear noise-canceling earbuds are not. |
E-bikes also generate more speed on descents. Use your brakes conservatively and maintain a safe gap—panic braking on loose gravel can cause crashes. If you’re riding down a steep gravel descent, drop your assist level to zero or Eco mode so the motor doesn’t push you faster than you can safely steer.
Other Restrictions
- No e-bikes on off-road alternatives – The main route is on paved and gravel roads. Some “pass through” off-road options may exist, but they are usually for traditional mountain bikes. Stick to the main RAGBRAI route.
- Recumbent e-bikes – Allowed as long as they meet the same motor and speed limits. Be aware that recumbents may not be visible to drivers in low-profile cars; add a tall flag.
- Motor disengagement – If your e-bike has a walk-assist mode, ensure it does not exceed 20 mph. Walk-assist is typically fine for moving the bike on foot.
Where to Confirm the Latest Rules
RAGBRAI updates its e-bike policy each year, usually posted on the official website (ragbrai.com) under “Rules & Safety” or “Rider Info” before registration opens. Call the RAGBRAI office if you have a borderline setup (e.g., a Class 2 with a removable throttle, a cargo e-bike, or a custom build). Don’t rely on social media forums—rules change, and enforcement at the starting line is strict.
Plan your battery logistics and choose a compliant e-bike. That way you’ll enjoy the ride without being turned away at check-in.