Giro Quarter Helmet – Mike's Bikes

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Quarter Helmet

Quarter Helmet

Quarter Helmet

Quarter Helmet

Quarter Helmet

Quarter Helmet

$49.99

Earn Up To $1000 in Reward Cards

Get Carded For The Holidays

Now through December 24th, when you spend $250 or more in-store or online, you will receive a free rewards card to redeem on future purchases. Earn rewards while you shop and make this holiday season even sweeter! You can keep the card for yourself or give it to someone else—we won't judge.

BUY GREAT GEAR. GET REWARDED

SPEND	RECIEVE A:
$250 - $499	$25 Promo Card
$500 - $999	$75 Promo Card
$1000 - $2499	$150 Promo Card
$2500 - $4999	$400 Promo Card
$5000 - $7999	$600 Promo Card
$8000+	$1000 Promo Card

Promotion is valid on all qualifying purchases made between 11/16/24 and 12/24/24, and the value of the Rewards Card is dependent on the qualifying purchase threshold (excluding any applicable costs of packaging, shipping & handling, or taxes). Offer not valid on gift cards. No discount is applied at the time of sale. Rewards Cards WILL BE EMAILED ON 12/26/24 for qualifying online purchases and are valid only at mikesbikes.com from 12/26/24 - 2/28/25. For in-store purchases and pick-ups, physical cards will be issued at the time of sale. Get Carded offer is not retroactive, and lost or stolen Rewards Cards will not be replaced. Physical and digital Rewards Cards expire on 2/28/25.

Color

Matte Black

Matte Chalk

Matte Portaro Grey

Size

Small

Medium

Large

Low stock - 4 items left
Inventory on the way

Show Store Pick-up Availability

San Rafael Available
Sausalito Available
Berkeley 2-4 days 10-14 days
Palo Alto 2-4 days 10-14 days
San Francisco Available
Sacramento 2-4 days 10-14 days
Los Gatos 2-4 days 10-14 days
Petaluma 2-4 days 10-14 days
Walnut Creek 2-4 days 10-14 days
San Jose Available
Pleasanton 2-4 days 10-14 days
Folsom 2-4 days 10-14 days
Roseville 2-4 days 10-14 days
Stanford Research Park 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Denver East 2-4 days 10-14 days
Denver Downtown 2-4 days 10-14 days
Highlands Ranch 2-4 days 10-14 days
Parker 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Show Store Pick-up Availability

Show Store Pick-up Availability

San Rafael 2-4 days 10-14 days
Sausalito 2-4 days 10-14 days
Berkeley 2-4 days 10-14 days
Palo Alto 2-4 days 10-14 days
San Francisco 2-4 days 10-14 days
Sacramento 2-4 days 10-14 days
Los Gatos 2-4 days 10-14 days
Petaluma 2-4 days 10-14 days
Walnut Creek 2-4 days 10-14 days
San Jose 2-4 days 10-14 days
Pleasanton 2-4 days 10-14 days
Folsom 2-4 days 10-14 days
Roseville 2-4 days 10-14 days
Stanford Research Park 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Denver East 2-4 days 10-14 days
Denver Downtown 2-4 days 10-14 days
Highlands Ranch 2-4 days 10-14 days
Parker Available
Distribution Center 2-4 days 10-14 days

Show Store Pick-up Availability

San Rafael 2-4 days 10-14 days
Sausalito 2-4 days 10-14 days
Berkeley 2-4 days 10-14 days
Palo Alto 2-4 days 10-14 days
San Francisco Available
Sacramento 2-4 days 10-14 days
Los Gatos 2-4 days 10-14 days
Petaluma 2-4 days 10-14 days
Walnut Creek 2-4 days 10-14 days
San Jose 2-4 days 10-14 days
Pleasanton 2-4 days 10-14 days
Folsom 2-4 days 10-14 days
Roseville 2-4 days 10-14 days
Stanford Research Park 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Denver East 2-4 days 10-14 days
Denver Downtown 2-4 days 10-14 days
Highlands Ranch Available
Parker 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Show Store Pick-up Availability

San Rafael 2-4 days 10-14 days
Sausalito 2-4 days 10-14 days
Berkeley 2-4 days 10-14 days
Palo Alto 2-4 days 10-14 days
San Francisco 2-4 days 10-14 days
Sacramento 2-4 days 10-14 days
Los Gatos 2-4 days 10-14 days
Petaluma 2-4 days 10-14 days
Walnut Creek 2-4 days 10-14 days
San Jose 2-4 days 10-14 days
Pleasanton 2-4 days 10-14 days
Folsom 2-4 days 10-14 days
Roseville 2-4 days 10-14 days
Stanford Research Park 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Denver East 2-4 days 10-14 days
Denver Downtown 2-4 days 10-14 days
Highlands Ranch Available
Parker 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Show Store Pick-up Availability

Show Store Pick-up Availability

San Rafael 2-4 days 10-14 days
Sausalito 2-4 days 10-14 days
Berkeley 2-4 days 10-14 days
Palo Alto 2-4 days 10-14 days
San Francisco Available
Sacramento 2-4 days 10-14 days
Los Gatos 2-4 days 10-14 days
Petaluma 2-4 days 10-14 days
Walnut Creek Available
San Jose 2-4 days 10-14 days
Pleasanton 2-4 days 10-14 days
Folsom Available
Roseville 2-4 days 10-14 days
Stanford Research Park 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Denver East 2-4 days 10-14 days
Denver Downtown 2-4 days 10-14 days
Highlands Ranch 2-4 days 10-14 days
Parker 2-4 days 10-14 days
Distribution Center 2-4 days 10-14 days

Show Store Pick-up Availability

Show Store Pick-up Availability

Free shipping on all orders over $49. $9 shipping for orders under $49.

Cannondale, Santa Cruz, Cervelo, Gazelle, BMC, and *other bikes ship for FREE, but Gold Label Assembly will be added at checkout for only $79 (reg. $100) to cover the professional bike build and re-packaging by our certified technicians. It’s bike shop quality, direct to your door!

Some bikes not eligible for shipping due to manufacturer restrictions.

Shop with confidence! It's important to us that you are happy with your Mike’s Bikes purchase so we offer offer a 30-day return/exchange window for your unused gear and 14 days on all bikes. Our exchange and return process is fast and easy. If you choose to exchange for a different size or color, we will ship your product for free.

View Full Policy

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Giro's Quarter is the lowest profile helmet Giro has ever made, and it’s also the lightest they’ve made with an ABS shell. All of the essentials are here - a tough outer shell with impact- absorbing EPS liner, riveted webbing anchors and plush, sweat absorbent pads that are easy to swap for dialing in the fit. A polyurethane coating helps to protect the EPS liner from daily wear and tear. Available in a bunch of great colors and three Super Fit sizes.

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Giro Quarter Helmet