Product Description
One fin that can either ride tight or loose depending on which side of the board you put it on. You know that sensation when a beautiful block of Wisconsin's finest is about to get shredded through the grater? Each slice so fluidly created by a simple motion. Ever wonder what would happen with that same contraption on the water? Magical things.
Cheese Grater Fin Riding Style
Mad scientists in tiny white lab coats created a fin with side perforations allowing small particles of water to pierce through the side of the fin. The result is a set of fins that would ride loose on one setting, and really locked in when those same two fins were reversed. A first of its kind when a symmetrical fin with asymmetrical features alters the flow of the water either to the center of the board or the outside of the board.
A Side Configuration
When the painted white rail faces towards the rail of the board, cutouts alter water from the inside and redirect it towards the outside. This puts extra pressure on the rail and makes the board feel more locked in while turning.
B Side Configuration
Switch the fins so the painted white rail faces towards the center fin (not the rail). Water is pulled towards the middle of the board, making it feel floaty and free through a turn.
Versatile Performance
One set of 3.5" fins that can ride like 2.5" fins or 4.5" fins depending on which way the holes are moving the direction of the water.
Carbon Epoxy Construction
Our stiffest, most responsive construction for maximum performance and durability.
Fin Placement
Fin Setup
Step 1
Line up fins in the fin box.
Step 2
With even pressure, push fin down into the fin box.
Step 3
After you hear the snap, double check the fin is engaged and go ride.
Fin Removal
Step 1
Push the button all the way down.
Step 2
Grab fin with other hand with even lift, pull the fin up.
Step 3
Put a new fin in and go ride again!
The Button Fin System
This patent pending design with over 5 years of development is now proudly available on several models. Typically with a fin attachment system the rider has to generate the force to release the fin. With The Button the energy comes from the internal design - at your disposal for an effortless release with a simple press of a button.
Available Sizes
A SIDE & B SIDE - 3.5"
Compatibility
These fins are only compatible with Button Fin Systems.

Button Cheese Grater A Side Surf Fin

Shipping policy
In Store Pick Up is available; please choose which store you'd like to pick up from and select “Pick up” during checkout. Your order will be ready for pick up at the selected location by 5:00 pm the next business day. If you wish to have someone else pick up your order, please contact the store directly.
Shipping Fees:
Standard
Order subtotal up to $99.00: $14.99
Order subtotal over $99: Free*
Generally, you will receive your order within 6 business days. If you have not received your order within this time period, please check the tracking information or contact us for assistance.
*Free Shipping applies to orders shipped within Canada only
*Some oversized items may not be eligible for Free Shipping
*Remote locations may require additional charges; please contact us for shipping large items (surfboards, wake foils etc).
Expedited
Cost will vary based on destination and size of package; freight will be automatically calculated during checkout if you have selected this method. This is a 2 - 3 business day service to most destinations within Canada.
Within Canada, we ship with FedEx & Canada Post. US orders are shipped via UPS. We do ship to PO Boxes and General Delivery, however due to the increased risk we may require further information before processing the order. The customer assumes all responsibility for orders shipped to PO boxes or General Delivery.
Once your order is shipped, you will receive an automated email which includes tracking information. You may also inquire about your order by calling 1-800-316-7669, or emailing ordertracking@boardroomshop.com. Please note, it may take up to 48 hours for tracking information to appear on the carrier’s website.
We want to ensure your new prized possession gets to you in perfect condition. All boards are shipped in a board sleeve, wrapped with packing paper, nose and tail bumpers, and are placed in an individual snowboard box. We are unable to set up your board before shipping due to shipping restraints.
International
The Boardroom extends International shipping services to countries outside Canada, however please note that certain manufacturers, namely Ride, Nike, and Never Summer, are not available for shipping outside Canada. Shipping cost for international orders is a flat rate of USD$30.
It's important to note that customers are solely responsible for any additional customs duties, taxes, and fees that may apply. We recommend contacting your local customs office for detailed information on potential charges. International orders are considered Final Sale and are not eligible for return.
To ensure a reliable and secure delivery, we partner with trusted international shipping carriers like UPS. Estimated delivery times for international shipments vary, typically ranging from 5-12 business days. Please be mindful that customs clearance procedures in the destination country may lead to unforeseen delays beyond our control.
