CAROL

CAROL

2021 to date

2021 to date

Fitness

Fitness

5 Years of Partnership — 3× Revenue Growth for $2,500 Biohacker Bike

5 Years of Partnership — 3× Revenue Growth for $2,500 Biohacker Bike

CAROL is a premium stationary bike engineered for Reduced Exertion High-Intensity Interval Training (REHIT), delivering clinically proven results in under 9 minutes per workout. We've partnered with them since 2021 — not just as media buyers, but as trusted growth advisors.

CAROL is a premium stationary bike engineered for Reduced Exertion High-Intensity Interval Training (REHIT), delivering clinically proven results in under 9 minutes per workout. We've partnered with them since 2021 — not just as media buyers, but as trusted growth advisors.

Key Results

Key Results

+65% increase in US sales since 2021

+65% increase in US sales since 2021

40% of total revenue driven by paid social in 2025

40% of total revenue driven by paid social in 2025

Challenges

Challenges

CAROL gained traction during the COVID fitness boom, but growth plateaued by mid-2021.
With no scalable paid social strategy in place, CAC was rising and creative performance was stagnating.


Solution

Actions

Over the past 5 years, we've acted as CAROL’s performance marketing partner — guiding strategy, shaping creative direction, and evolving the ad account structure in step with Meta platform changes and market dynamics.

1. Structured the ad account for learnings and scale

  • Rebuilt the Meta ad account to maximize incremental reach and conversion efficiency.

  • Designed a full-funnel campaign structure, adapted to the brand’s long sales cycle — top-of-funnel (lead gen, awareness) and middle and bottom-of-funnel (purchase) flows.

  • Tested multiple funnel paths, audience segments, and messaging angles — including workout efficiency, longevity/biohacking, and weight loss.

2. Built a scalable creative engine with always-on delivery

  • Designed a repeatable testing system across brand assets, creator content, whitelisted content, celebrity endorsements, and performance PR formats.

  • Developed an ongoing asset production loop — built around clear use cases, high-intent hooks, and top-performing angles.

  • Launched and optimized performance landing pages — with PR-style listicles consistently driving the highest conversion rates.

  • Partnered with a roster of US creators to build a sustained content pipeline — balancing brand storytelling with conversion-driven execution.

Static Ad Creatives

Video Ad Creatives

Testimonial

Testimonial

Victoria Rusnac

CMO, Carol Bike

"The Frontline team brought to the CAROL team the growth and experimentation mindset advising on the best paid social media creatives and landing page that brought our CAC down by 62% last year. They helped us find other growth channels and scale them effectively."

"The Frontline team brought to the CAROL team the growth and experimentation mindset advising on the best paid social media creatives and landing page that brought our CAC down by 62% last year. They helped us find other growth channels and scale them effectively."

"The Frontline team brought to the CAROL team the growth and experimentation mindset advising on the best paid social media creatives and landing page that brought our CAC down by 62% last year. They helped us find other growth channels and scale them effectively."