Lime Gives Promo Codes a New Purpose

As shared e-bikes continue to transform urban mobility, Lime is investing in new ways to promote safer riding behavior. Instead of relying on traditional safety messaging, the company has introduced “Promise Codes”, a campaign that combines rewards, humor and education.

Created by creative agency The Or, the initiative reimagines the standard promo code by turning it into a personal commitment to ride responsibly.

How Promise Codes Work

Rather than entering random discount codes, riders are invited to type out written safety pledges inside the Lime app.

Once entered, the promises unlock free riding minutes, creating an incentive for cyclists to engage with the safety message while receiving a practical reward.

The campaign is based on a simple behavioral insight: people are more likely to remember and follow through on commitments when they physically write them down.

Humor Instead of Lectures

One of the campaign’s strengths is its playful tone. Rather than making riders feel criticized or instructed, Lime uses entertaining language to encourage safer habits.

Some of the Promise Codes include:

• “I promise to politely share the roads like I share assorted picky bits in the park.”
• “I promise to ride under the influence of whimsical summer vibes only.”

The lighthearted approach helps the messages feel more relatable while reinforcing important safety behaviors.

Outdoor Advertising Across The UK

The campaign launched across out-of-home locations in London, Birmingham and Milton Keynes.

Using location-specific insights, each execution delivers tailored safety pledges relevant to local riding habits and behaviors.

The campaign extends beyond traditional OOH placements through guerrilla-style stickers placed in Lime bike baskets, as well as influencer and creator partnerships that help distribute additional Promise Codes throughout the UK.

Making Cycling Safer Through Creativity

According to Lime, the objective is to make safety communication feel more human, culturally relevant and memorable than conventional awareness campaigns.

By combining rewards with behavioral psychology and humor, the brand hopes to encourage positive riding habits that contribute to safer city streets for everyone.

Why This Campaign Works

• Transforms a standard promo code into an engaging brand experience.
• Uses behavioral science to reinforce positive actions.
• Rewards riders for interacting with safety messaging.
• Combines outdoor advertising, experiential marketing and digital engagement.
• Makes safety education entertaining rather than instructional.

“Promise Codes” demonstrates how creative thinking can turn a simple promotional mechanic into a meaningful campaign that benefits both riders and the wider urban community.