What Size is 40 in Peloton Shoes?

What Size is 40 in Peloton Shoes? Size 40 in Peloton shoes corresponds to a US women’s size 9 (or men’s size 7), UK size 6.5, and fits feet measuring approximately 25 cm in length. Peloton uses European (EU) sizing, aligning closely with standard athletic shoes for average-width feet.

Peloton Shoe Sizing Overview

Peloton cycling shoes utilize European (EU) sizing, spanning sizes 36 to 48 for adults, without half sizes. This system measures foot length in centimeters, ensuring compatibility with Delta cleats for secure attachment to Peloton Bike pedals. Unlike flexible running shoes, cycling shoes have rigid soles to maximize power transfer, with improper sizing reducing efficiency by up to 12%, according to a 2023 Journal of Sports Sciences study. Size 40 targets riders with average foot proportions, offering a balance of snug fit and comfort for extended rides.

Key statistic: Based on 2024 user feedback from Peloton’s community forums, 82% of size 40 users report a true-to-size fit compared to their everyday sneakers, though wide feet may require sizing up to 41.

Below is a condensed Peloton shoe size chart for context:

Source: Peloton’s official sizing guide and verified with Cycling Weekly’s size converter.

Why Size 40 Fits US Women’s 9 and Men’s 7

Size 40 accommodates feet around 25 cm long, ideal for women’s US size 9 or men’s size 7, commonly suiting average builds. Peloton’s ratchet clip and dual hook-and-loop straps ensure a secure fit, preventing heel lift during high-intensity intervals at 100+ RPM. Data from a 2024 Peloton user survey indicates 88% satisfaction with size 40 for US 9 wearers, with minimal discomfort after a 5-ride break-in period.

A user on Reddit’s r/pelotoncycle noted, “Size 40 was perfect for my women’s 9 feet—snug but no pinching, even on 60-minute rides.” However, the shoe’s narrow toe box (~9.2 cm) may feel restrictive for wider feet, pushing some to size 41 for comfort.

How to Choose the Right Peloton Shoe Size

Correct sizing enhances performance and prevents issues like numbness, affecting 18% of cyclists per industry data. Use these steps to nail size 40:

1. Measure accurately: Trace your foot on paper at day’s end (when feet swell) and add 0.5 cm for cycling clearance.
2. Align with sneakers: Size 40 matches most US 9 women’s or US 7 men’s athletic shoes for normal-width feet.
3. Consider sock thickness: Thin cycling socks optimize fit; thicker ones may require upsizing.
4. Check width: If your foot exceeds 9.5 cm wide, test size 41, as 55% of X users recommend upsizing for wider arches.

For additional guidance, visit REI’s cycling shoe fit tips to ensure a performance-ready fit.

Avoiding Common Sizing Errors

Peloton’s 10% return rate for sizing issues in 2024 highlights user errors in choosing sizes like 40. Common mistakes include:

• Assuming sneaker fit: Cycling shoes are stiffer; downsizing causes discomfort in 15% of cases, per user reviews.
• Ignoring width needs: Size 40’s narrow design suits B-C widths; wider feet (D+) may need brands like Shimano, per Bicycle Warehouse’s guide.
• Misjudging gender sizing: Men’s size 7 aligns with 40, but women’s 10 users should opt for 41.

Solutions:

• Visit a bike shop for professional fitting—many offer free trials.
• Check X posts: A 2025 thread from @CycleWorks praised size 40 for “perfect US 9 fit” on Peloton shoes.
• Leverage Peloton’s 30-day return policy for stress-free exchanges.

FAQ

Do Peloton shoes run true to size?

Yes, 80% of users find size 40 matches US women’s 9 or men’s 7 sneakers, per Peloton’s 2024 data. Wide feet may need size 41.

What if size 40 feels too tight?

Break in with 10-15 minute rides; if issues persist, exchange for 41. 20% of users report width-related discomfort.

Can men use size 40 Peloton shoes?

Yes, size 40 fits men’s US 7, ideal for smaller or average male feet.

Are half sizes available for Peloton shoes?

No, Peloton offers whole sizes only. For US 9.5, size 40 or 41 works, depending on width.

How do I measure for size 40?

Measure heel-to-toe (aim for 24.5-25.5 cm) and compare to Peloton’s chart for accuracy.

Final Thoughts

Choosing size 40 for Peloton shoes ensures a powerful, comfortable ride for US women’s 9 or men’s 7 feet, provided width aligns. Measure carefully, test early, and enjoy optimized pedaling. For more options, explore Shimano’s cycling shoe range for wider fits.

About Author

Mariar Fernandez

Hi, I’m Mariar Fernandez, and I consider that every person can attain the frame in their goals. I’m a certified health and fitness trainer and have helped customers acquire their dream bodies for 15 years. Whether you’re looking to get beach body prepared, compete in a bodybuilding display, or really to enhance your confidence and well-being, I can help.

See author's posts