Item Package Dimensions L x W x H | 12.09 x 9.29 x 6.46 inches |
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Package Weight | 0.99 Kilograms |
Item Dimensions LxWxH | 13 x 10 x 7 inches |
Item Weight | 454 Grams |
Brand Name | THOUSAND |
Model Name | Thousand Adult Bike |
Color | Club Navy |
Suggested Users | unisex-adult |
Number of Items | 1 |
Manufacturer | Thousand |
Part Number | 7050101304 |
Outer Material | Polycarbonate (PC) |
Size | Small |
Sport Type | Cycling |
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Thousand Chapter MIPS Adult Bike Helmet - LED Tail Light, Cycling & Bicycle Safety Certified, Lightweight & Low Profile, Men & Women, Lockable PopLock
Price: | $145.00$145.00
Free Return on some sizes and colors
Select Size to see the return policy for the item |
US Chapter MIPS Adult Bike Helmet
Brand Size | Head Circumference (in) | Hat Size (in) |
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Small | 21.2 - 22.5 | 6.8 - 7.1 |
Medium | 22.5 - 23.2 | 7.1 - 7.4 |
Large | 23.2 - 24.4 | 7.4 - 7.8 |
Brand | THOUSAND |
Color | Club Navy |
Age Range (Description) | Adult |
Size | Small |
Special Feature | MIPS Technology, Adjustable Strap, Visor |
About this item
- MIPS: Add an extra layer of protection with integrated MIPS technology.
- MULTI-USE MAGNETIC LIGHT: Ride smoothly from day to night with an included 30 lumen USB rechargeable taillight that turns on automatically when magnetically attached to the helmet or multi-use adapter.
- PREMIUM VISORS: Reduce glare and increase your field of vision with visors in elevated finishes, including hand-painted tortoise shell, matte black, and metallic rose gold.
- SECRET POPLOCK: The most convenient and secure way to leave your helmet behind. Access the hidden channel behind the logo mark, and thread your U-lock or chain lock through. Backed by our Anti-Theft Guarantee.
- ACTIVE VENTILATION: 8 strategically placed vents actively capture airflow and pass it through the interior cooling channels – developed to keep you cool on your long rides.
Additional Details


Frequently purchased items with fast delivery
From the brand

OUR MISSION
Making safety seamless to get you moving.
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Before starting Thousand, I never wore a helmet, even though I was a longtime cyclist. But when I lost a friend to a fatal bike crash, I knew I had to change. Instead of settling for the “sci-fi” looking helmets on the market, I got to work designing one.
We named our company “Thousand” as a goal to help save 1000 lives by making helmets people actually want to wear. Our name is a daily reminder of why we do what we do.
-Gloria Hwang, Founder
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110% Carbon Offsets
We’re measuring, reducing, and offsetting our annual carbon emissions...then offsetting more to create a positive impact on the planet.
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Anti-Theft Replacement Policy
With our Anti-Theft Policy, if your helmet is ever stolen while locked to your bike through the PopLock, we'll replace it for free.
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Product Description




Secret PopLock
Lock your helmet to your bike with the PopLock. Backed by our Anti-Theft Policy.
Premium Visors
Reduce glare and increase your field of vision with visors in elevated finishes.
Dial Fit System
With our easily adjustable fit system, you can dial in the perfect fit every time.

FIT NOTES
Every head is different, but with our helmets' integrated dial fit system, it's easy to make small adjustments for a comfortable fit. Just turn the dial clockwise to tighten or counterclockwise to loosen. You can also remove some or all of the interior fit pads without affecting the safety of your lid to accomplish your preferred fit.
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Customer Reviews |
4.7 out of 5 stars 3,852
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4.6 out of 5 stars 77
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4.6 out of 5 stars 463
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3.1 out of 5 stars 77
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4.5 out of 5 stars 134
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4.4 out of 5 stars 70
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Price | $99.00$99.00 | — no data | — no data | — no data | $27.00$27.00 | $19.00$19.00 |
Designed for | Bike, skateboard, roller skates, kick scooter | Bike | Bike, Kick Scooter | Bike, E-Bike, Scooter | Bike | Bike |
Safety Certifications | CPSC, ASTM, CE | CPSC, CE, MIPS | CPSC, ASTM, CE | no data | no data | no data |
Free Accident Replacement | ✓ | ✓ | ✓ | no data | no data | no data |
Features | PopLock, Magnetic Buckle, Vegan Leather Straps, Dial Fit System | Magnetic Light, PopLock , Magnetic Buckle, Nylon Straps, Dial Fit System | Magnetic Buckle, Vegan Leather Straps, Dial Fit System | Magnetic Mounting, Multiple Modes, USB Rechargeable | no data | no data |
Product information
Technical Details
Additional Information
ASIN | B08CGKQLWK |
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Customer Reviews |
4.6 out of 5 stars |
Best Sellers Rank | #38,943 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #114 in Adult Bike Helmets |
Date First Available | December 18, 2020 |
Videos
Videos for this product
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Thousand Chapter MIPS Helmet Review
Electric Revolution
Videos for this product
1:04
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Bike helmet. High end but worth it.
Should I Get It Reviews
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the bike helmet beautiful with MIPS technology and appreciate its lightweight design and magnetic light attachment. The helmet is well-made and comfortable, with one customer noting it breathes well during town rides. The fit receives mixed feedback, with some finding it nice while others say it's too confining, and several customers consider it very pricey.
AI-generated from the text of customer reviews
Select to learn more
Customers appreciate the helmet's style, noting its beautiful design with MIPS technology and nice color, with one customer specifically mentioning they love the little visor.
"...It’s SO pretty and lightweight, it looks cool, it’s super functional, and I love the company’s free replacement policy. I love this helmet!" Read more
"LOVE this bike helmet. Fits extremely well, is light, attractive and MIPS rated...." Read more
"This is my first helmet in a while. I’m very pleased with the look, the shape, and how easy it was to customize...." Read more
"This helmet’s exterior and interior does a great job—very handsome, comfortable, sturdy and protective, however the rear light doesn’t hold the..." Read more
Customers find the helmet comfortable, with one mentioning it breathes well during town rides.
"I’m in love with my helmet, it is so comfortable and light weight, you can easily adjust it, the light on the back is very nice. Yeah I recommend it!" Read more
"Snug fit, comfortable, worth it's price" Read more
"I used this helmet for a year. It is very comfortable, durable. Overall no complains but there are two small cons that I don't like: 1...." Read more
"This helmet is very comfortable. It comes with a very bright led light that attaches to the back of the helmet. The strap is easy to use." Read more
Customers find the helmet to be of good quality, with one customer specifically noting its MIPS rating.
"LOVE this bike helmet. Fits extremely well, is light, attractive and MIPS rated...." Read more
"Best helmet ever" Read more
"...Great helmet." Read more
"...It fits over my head, not on top of it. I like the MIPS and the light for the back is way better than described in the reviews." Read more
Customers find the helmet well made and of top quality, with one customer noting it feels very secure.
"...Well made. Would buy it again in a minute!" Read more
"I used this helmet for a year. It is very comfortable, durable. Overall no complains but there are two small cons that I don't like: 1...." Read more
"...things worse, the magnetic cap where the hole is for a bike lock is super weak and falls off with the slightest bump... this does not happen with..." Read more
"...It's a little pricey but seems to be a quality product." Read more
Customers appreciate the helmet's magnetic features, including its light attachment and quick-release clasp.
"...chain lock so you don't have to carry the darn thing around AND a magnetic light that you can attach to your helmet or to your bike. Well made...." Read more
"...No pun intended! The additional rechargeable magnetic light that attaches to your helmet or your bike is a great little bonus too...." Read more
"...1. Secret poplock magnet is a bit weak, so sometimes if you shake hard it might fall off, fortunately it is tied to helmet, so you wont lose it...." Read more
"...this helmet is so expensive and that's because it has a handy magnetic light on the back which (annoyingly) turns on automatically as soon as you..." Read more
Customers appreciate that the helmet is lightweight.
"...It’s SO pretty and lightweight, it looks cool, it’s super functional, and I love the company’s free replacement policy. I love this helmet!" Read more
"LOVE this bike helmet. Fits extremely well, is light, attractive and MIPS rated...." Read more
"I’m in love with my helmet, it is so comfortable and light weight, you can easily adjust it, the light on the back is very nice. Yeah I recommend it!" Read more
"...It fits well, is light weight, and I like the magnetic quick release clasp. The LED light runs constant red or flashes red...." Read more
Customers have mixed opinions about the helmet's fit, with some finding it nice and easy to adjust, while others report it being too small and uncomfortable.
"...I love the pop-lock feature and can easily fit my U-lock through it. I’m convinced that, with MIPS, this is the best helmet on the market...." Read more
"LOVE this bike helmet. Fits extremely well, is light, attractive and MIPS rated...." Read more
"I purchased it per measurements but it was tight and I couldn’t wear it. Unfortunately I had to return. For cuteness, I would recommend this." Read more
"...with my helmet, it is so comfortable and light weight, you can easily adjust it, the light on the back is very nice. Yeah I recommend it!" Read more
Customers find the helmet very pricey.
"...3. Price is a bit high..." Read more
"...But lets get to why this helmet is so expensive and that's because it has a handy magnetic light on the back which (annoyingly) turns on..." Read more
"Snug fit, comfortable, worth it's price" Read more
"...It's a little pricey but seems to be a quality product." Read more
Reviews with images

Perfect fit & taillight!
Top reviews from the United States
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- Reviewed in the United States on July 16, 2022Color: Supermoon WhiteSize: SmallVerified Purchase** INITIAL REVIEW: 2 stars ** (Scroll down to see update.)
This helmet is gorgeous and incredibly lightweight, but the advice to size down if you’re on the cusp was 100% wrong for my head shape.
My head is 57cm or hat size 7 1/8, and is a “long oval” shape, which means long front to back and narrow side to side. I wear:
- a large in women’s hats
- a medium in men’s hats
- a medium in most bike helmets (Giro, Bell, etc.)
- a medium in most motorcycle helmets (Shoei, Arai, etc.)
(FWIW, the size medium in the Nutcase Street helmet — a competitor that a lot of people try before shelling out for this Chapter helmet — is too tight on me, and the large is comically big. That helmet just doesn’t work for me at all.)
57 cm is on the cusp between small and medium in most helmets, including this one by Thousand. So following their fit advice as well as that of other reviewers — and against my own better judgment — I sized down to a small in this Chapter helmet.
Bad move. :( It pinches my head front to back. Awful pressure points; immediately headache-inducing.
It’s a beautiful helmet, but I’m annoyed at the misguided advice to size down. Now I need to exchange it for a different size. Will update my review pending a response from Thousand customer service.
** UPDATE, two weeks later: 5 stars **
Thousand customer service was great. They sent me a medium right from their warehouse in California, and it fits perfectly! Shipping was free. I returned the size small to Amazon.
Now that the helmet fits correctly, I’ve explored all the accessories that come in the box.
Based on other reviews, I think Thousand has fixed the issue with the magnetic USB tail-light turning on while charging. While I charged mine, only one small LED gently flickered (and then held steady when the charge was full). It certainly wasn’t blinking at full brightness while charging, like reviewers from previous years mentioned.
The light does automatically turn on when it magnetically snaps on your helmet. And holy cow is it BRIGHT. I can see how this would be really useful in many cases but annoying in others.
I love the pop-lock feature and can easily fit my U-lock through it.
I’m convinced that, with MIPS, this is the best helmet on the market. It’s SO pretty and lightweight, it looks cool, it’s super functional, and I love the company’s free replacement policy. I love this helmet!
- Reviewed in the United States on August 4, 2022Color: Skyline GreySize: SmallVerified PurchaseLOVE this bike helmet. Fits extremely well, is light, attractive and MIPS rated. There is a place to attach the helmet to your bike chain lock so you don't have to carry the darn thing around AND a magnetic light that you can attach to your helmet or to your bike. Well made. Would buy it again in a minute!
- Reviewed in the United States on June 11, 2024Color: Supermoon WhiteSize: SmallVerified PurchaseI’m in love with my helmet, it is so comfortable and light weight, you can easily adjust it, the light on the back is very nice. Yeah I recommend it!
- Reviewed in the United States on September 17, 2024Color: Supermoon WhiteSize: LargeVerified PurchaseThis is my first helmet in a while. I’m very pleased with the look, the shape, and how easy it was to customize. No more deciding which pads will work. I was unhappy with the shipping, thou. I ordered on Tuesday, the confirmation said Thursday, my birthday, then changed to Sunday, then Monday. I finally received it Monday. Good thing I’m pleased with the helmet.
- Reviewed in the United States on October 18, 2024Color: Racer BlackSize: MediumVerified PurchaseSnug fit, comfortable, worth it's price
- Reviewed in the United States on January 8, 2024Color: Club NavySize: MediumVerified PurchaseI used this helmet for a year. It is very comfortable, durable. Overall no complains but there are two small cons that I don't like:
1. Secret poplock magnet is a bit weak, so sometimes if you shake hard it might fall off, fortunately it is tied to helmet, so you wont lose it. I recommend to tape it from the inside to the helmet if you don't use it so it wont bother you.
2. You need to charge magnetic light more often than other bike lights. Also it is loose battery even if it is turned off (I don't know why, maybe I have defective one). Because of that I never can be sure that it is charged or charged enough for the bike trip. If you don't use it daily, always charge it to full before your bike trip because it probably loose it's charge during idle time.
3. Price is a bit high...
- Reviewed in the United States on June 3, 2024Color: Skyline GreySize: MediumVerified PurchaseThis helmet is very comfortable. It comes with a very bright led light that attaches to the back of the helmet. The strap is easy to use.
- Reviewed in the United States on November 21, 2024Color: Club NavySize: MediumVerified PurchaseI like the shape. It doesn't make your head look like a bird beak.
Top reviews from other countries
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AchimReviewed in Germany on December 5, 2023
5.0 out of 5 stars optisch gelungen
Color: Club NavySize: MediumVerified Purchaseoptisch gelungen
- MorganaReviewed in Canada on May 15, 2023
5.0 out of 5 stars Fit
Color: Club NavySize: SmallVerified PurchaseI’d read several reviews where customers were not satisfied with the fit but I decided I’d order the helmet and try. I’m very happy to report that the helmet fits me perfectly and was precise in the measurement. My head size is exactly at the high end of size “small” so I wasn’t Sure if I should size up but the size small is snug and not too tight. A few minutes fiddling with the straps and dial adjustment to get my exact fit and I’m off for a ride!
- Matthew F.Reviewed in the United Kingdom on February 12, 2025
2.0 out of 5 stars poor quality light
Color: Supermoon WhiteSize: LargeVerified PurchaseThe magnetic light for the back is poor quality. First, it has a micro-usb connection. For the price paid for the helmet, i'd expect a USB-C connection. In fact, i'd rather have that than a lot of the useless packaging which comes with the helmet (I don't need a cloth bag for it or a bike bracket for the light). Also, the light flashes as it's being charged which is an annoying flaw. It just means it will take longer to charge and it's flashing at a time not needed.
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Miguel AraújoReviewed in Spain on January 2, 2025
5.0 out of 5 stars Perfeito: bonito e seguro!
Color: Club NavySize: SmallVerified PurchaseRealmente bonito, diferente dos capacetes típicos. Além disso, de excelente construção e com a máxima segurança. Os detalhes como a luz magnética e o sistema para colocação de aloquete são fantásticos.
- AHRReviewed in Canada on July 16, 2022
5.0 out of 5 stars She loves it!
Color: Club NavySize: SmallVerified PurchaseShe loves the fit but is under-whelmed with light.