Our 2-piece floating rotors are easily recognizable out on the dirt or pavement. With beautiful machining and a wide array of color options they are a serious bling upgrade for your bike. Despite their good looks, Scrub rotors have a lot of technology and performance features that are easy to overlook.
WHAT SCRUB MEANS BY ‘FLOATING’
Our rotors are constructed of 3 distinct components; a center carrier or spider, an outer friction ring and a custom rolled aluminum retaining ring. Unlike other 2-piece rotors, the outer friction ring is not bolted or riveted to the center carrier in any way. Rather, the two parts fit together like puzzle pieces and create a solid interface to transfer brake torque. Our 160mm rotor has 18 points of contact between the carrier and friction ring for even friction ring support and load transfer, compare that to 4 or 5 contact points on other rotors out there.
Why go through the trouble? The heat generated by a brake system is pretty much focused on the outer diameter of the rotor beneath the brake pads. On a ‘normal’ rotor, the hot outer diameter of the rotor expands and distorts the much cooler center section. When the rotor returns to ambient temperature, the distortion causes the rotor to dish, warp and buckle.
With a Scrub floating disc, the outer ring can expand and return to normal temperatures independently of the center carrier. No stresses, no distortion and no warping or dishing. Our rotors will stay more true than stock rotors which means less annoying drag and pad rub!
FRICTION RING MATERIAL SELECTION
Scrub offers 2 very distinct material options for our friction rings (the outer portion of the rotor where the actual braking takes place). Most people know Scrub for our super-light race rotors, these use our aluminum-based Metal Composite (MMC). Our other offering is an industry standard high-grade Stainless Steel friction surface. The choice of material should be made carefully as the 2 materials behave very differently from each other. The graphic below summarizes the pros and cons of each:
The bottom line is this, the Scrub MMC rotor is a fantastic option to shed another ~50g per wheel out of your cross-country race bike or speed demon cyclocross machine. They are perfect for cyclocross in fact, they really only show their performance weaknesses under more demanding conditions so you can have all the weight savings without the concerns that you might have on a bike built for bigger mountains.
The Stainless Steel option is Scrub’s bombproof upgrade option for the rest of us. They will feel at home on any bike and will handle the abuse while simultaneously being the sexiest brake rotors you will ever own. They’ve proven themselves on everyday trail bikes, all-mountain bikes, gravel bikes, enduro bikes, touring bikes, fat bikes, and just about every other bike that can be had with disc brakes!
Scrub Components. American Made Replacement Rotors and Brake Pads.
Calling all racers, weekend warriors and tech weenies! Scrub Components, purveyor of American Made Replacement Brake Pads and Rotors, is looking for the right people to help promote our products in Utah and Colorado through a grassroots Scrub Brand Ambassador program. The program is not exclusive to racers only, we are looking to involve people who are passionate about riding and would rather work on their bike than work in the yard or wash the car.
A Scrub Brand Ambassador fits the following description:
- Based in Utah or Colorado
- Rides 3+ days per week and/or races at the Expert level or higher
- Preferably affiliated with a biking group, race team, or organization in your area
- Must have a BLOG and be active on social media (Facebook, Twitter)
A Scrub Brand Ambassador receives the following perks:
- Two (2) Scrub 2-piece floating Stainless Steel rotors in the Ice Blue/Red ‘Team Issue’ color scheme
- Two (2) Scrub Premium Organic brake pads with CHILL Cooling Fins
- Scrub T-shirt or hat
- Pro Deal discounts on additional Scrub product
A Scrub Brand Ambassador will be required to:
- Actively promote Scrub Components in their cycling community
- Write a professional, comprehensive BLOG review of the rotors and pads, within a specified time period
- Spread the word about Scrub Components products through social media
For questions or to submit your ‘application’, please send an email directly to: chris (at) scrubcomponents (dot) com
Brake pads are one of the most overlooked maintenance items on a bike. They usually sit unnoticed in a caliper until the morning of that epic group ride when you suddenly realize you have no front brake! Besides the obvious signs that it’s time for a fresh pair of pads, there are other factors that contribute to loss of performance and an increased potential for noise and harshness.
PADS THAT ARE COMPLETELY SHOT
The obvious signs that your pads need replacement are easy to spot. Things like sudden new noises or harshness, loss of power and/or modulation should indicate that it is time for a tuneup and new brake pads. Ideally you should not let it come to this, worn down pads can easily leave you stranded with no brakes as well as cause damage to your rotors, pad springs and even calipers. Look at it this way, is it better to change the oil in your car every 3000 miles or just drive it hard until it breaks down and then tow it in? You could just keep riding until you’ve got a steel backing plate grinding against your steel rotor but it’s likely to cause all kinds of problems that could have been avoided.
A BIT OF A REALITY CHECK – PADS ARE THIN TO BEGIN WITH
We are asking more and more of our bikes as the sport continues to be pushed forward. Not only do modern disc brakes have to perform extremely well, they are designed to fit in to a very small space. A brand new Scrub brake pad has a total thickness of 0.150” in order to fit properly into a caliper. We are trying to keep the backing plate as thin as possible, but that still only leaves 0.085” of pad material. To put that in perspective, consider the ACTUAL SCALE image of a new brake pad below:
A car guy might suggest that you replace your pads when there is 25% of the pad material remaining. That sounds like good logic, but on a bicycle that only leaves 0.021” (that is 1/50 of an inch!) protecting you and your components from harm:
If you find yourself squinting to see the pad material, you are not alone! Again, these drawings are done to real life scale purposefully to show how little room for error there is. Further, the leading edge of a brake pad on any vehicle tends to get pulled in to the rotor which causes uneven wear. If your pads are worn even 1 degree off of parallel, the pad image above changes to this:
You can see that pads worn this way puts your rotor square into your pad springs and/or backing plate. It should be clear that given what we ask of our brake systems, the pads need to be monitored closely or changed at regular intervals to avoid letting them get worn to thin.
OTHER HIDDEN KILLERS
As many people know Scrub Components is based in Park City, Utah. Like much of Utah and Colorado, in Park City the riding season is very dry as it is a desert climate. Brake pads tend to last a long time in terms of wear because of the absence of gritty mud and water, but that doesn’t mean they can be neglected. Pad material can harden and dry out, as well as absorb contaminants such as chain lube, hydraulic fluid, frame polish (you know who you are…) and definitely dirt, dust and sand. Any foreign contaminants embedded in a brake pad can cause noise and vibration, loss of power, and accelerated wear of rotors. A lot of this can be minimized with proper care and cleaning but the pad material is like a sponge so eventually it will absorb contaminants despite your best efforts.
WHEN WAS THE LAST TIME YOU DROPPED IN NEW BRAKE PADS?
There is a huge demand placed on the performance of your disc brakes, maintaining them will give you more control of your bike, a higher confidence in riding and a more enjoyable experience on the bike. One of the easiest things you can do for your brakes is to change the brake pads regularly. To make this routine maintenance even easier, Scrub offers our one-and-only Brake Pad Subscription packages so that you don’t even have to remember when to pick up a new set of pads. Several levels of subscription are available at discounted prices, so there is no reason not to have quiet, smooth and powerful braking all the time! Of course you can still purchase pads a la carte if you aren’t ready to commit just yet.
Scrub is proud to announce the release of our replacement brake pads with CHILL integrated cooling fins:
- Avid Elixir / XX
- Formula R1 / RX / Mega / The One
- Pre-2011 Shimano XT / XTR
- 2011+ Shimano XT / XTR
- backing plate – steel
- CHILL fins – aluminum
- friction material – Scrub organic
- deep red with ice blue CHILL fins
- quiet, consistent, reliable performance
- CHILL fins increase cooling efficiency up to 20%
- 100% made in the USA
- 16g per pair (Elixir with CHILL fins)
- with CHILL – $35 per set
- without CHILL – $28 per set
Ready to buy? Click here to go straight to our webstore.
Scrub is off to NAHBS 2013 in Denver! We are super excited and have some cool stuff we are taking with us this year like our soon-to-be-available CHILL brake pads and a sweet one-off multi-position handlebar dubbed the Ti Fighter…
Stop by the booth if you’re in Denver this weekend!