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Formula Brakes RX Disc Brake System
Product DescriptionBlessed with trickledown technology, the Formula RX Disc Brake shares the general design and performance of the top shelf R1 -- but in an extremely affordable package. You can expect to get that same smooth application of stopping power and consistent lever feel that you expect from Formula's high-end products, with only a tiny weight penalty.The Formula RX Brake employs the new radial design master cylinder. The RX master cylinder body works just like its more expensive big brother, but a pressure cast body, as opposed to a forged body, keeps the cost down as does the use of steel hex-bolt hardware instead of the R1's alloy torx bolts. It can be run moto-style with the rear brake on the left as both lever/master cylinder bodies are identical.It features the same 22mm diameter pistons as the R1 and both can use the same brake pads. However, where the R1 has an alloy backed organic pad, the RX comes with a steel backed organic pad as standard equipment. It uses a polyester braided hose that works to prevent hose expansion when the system is under extreme pressure. Formula uses DOT 4 brake fluid, which is less temperature-sensitive than mineral oil.The pistons themselves are made of a heat dissipating composite material and are cupped to provide even more surface area for the fluid to push against and to help shed built-up heat. The one-piece caliper design is stiffer because there are no bolted-together parts to flex along the seam line when you need to stop fast and grab a finger-full of lever. Good ventilation on both the bottom and top of the piston dissipates heat and the top vent also helps make pad changes easy, even with the wheel still in the bike.The Formula RX Disc Brake is available in Black or White. The price reflects all the parts, save for the rotor which is sold separately in three sizes; 160mm, 180mm, and 203mm. Each size comes with the appropriate adapters. The RX brake weighs 341 grams (with 160mm rotor).Please note: almost all hydraulic brake lines need to be cut to size before a bike is properly shod with hydraulic disc brakes. You'll need a quality cable-cutter like the Park CN-10 and a spoke to first cut and then de-crimp the housing.
User Reviews
Submitted by
Formula RX
a Cross Country Rider Date Reviewed: May 15, 2013 Strengths: Good stopping power and light weigh Weaknesses: None Bottom Line: Expand full review >>Similar Products Used: Avid Juicy 5 Bike Setup: Formula rotors, F 180, R 160 
Submitted by
Learux
a Cross Country Rider Date Reviewed: April 19, 2013 Strengths: Modulation, power. Easy to service([pad change) looks, weight The front brake makes an awesome sound when active. Buzzes like an angry bee. It is not loud and it is a good indicator of brake performance. Weaknesses: Have not encountered any. Bottom Line: Expand full review >>Favorite Trail: fire roads, single track Duration Product Used: 10 month Similar Products Used: bb7 Bike Setup: RM 950 element
Submitted by
Mike
a All Mountain Rider Date Reviewed: January 15, 2013 Strengths: Strong powerful brake performance with reliability and lightness. Beautifully made. Plenty of options from basic, which is excellent, to highly adjustable. Different colour options. Weaknesses: Brake pad to rotor tolerances are very close and so occassionally the pads kiss the rotors. This does not effect the performance. I have found that the basic organic pads are very good. Bottom Line: Expand full review >>Favorite Trail: Coed Llandegal Duration Product Used: over 12 months Price Paid: $250.00 Purchased At: Merlin Cycles Similar Products Used: Shimano Deore, XT, XTR. Hope Mini, Mono Mini, Evo XT & M4, Avid Juicy & Avid Elixir 7, Hayes Prime Comp. Bike Setup: Commencal Meta 55, Full XT, Hope Pro11 Evo hubs with Stans Arch EX rims Comp spokes, Raceface & Fizik. Maxxis Ardent 2.25's...not tubeless.
Submitted by
Swine
a All Mountain Rider Date Reviewed: August 27, 2012 Strengths: Excellent power, very modest weight, good modulation, sexy and sleek design, great construction. Weaknesses: Can be somewhat noisy, decent but not great modulation. Bottom Line: Expand full review >>Similar Products Used: 06' XTR brakes, Hayes hydro's Bike Setup: 2011 Sanction 1.0 stock
Submitted by
Shoggy Date Reviewed: July 15, 2012 Strengths: Great brakes, very keen and are great on downhill trails. They look great and even sound great when slamming on when bombing down a hill or even on the flats. Have had these on my cube reaction gtc pro for the past year and have no major complaints. Havent had to swap out the pads yet. Weaknesses: When riding in the wet they squeal and make a resonating humming sound when the pads are really dirty, recommend a good clean after a heavy muddy trail... Apart from that nothing at all. Bottom Line:
Submitted by
dtheo Date Reviewed: April 29, 2012 Strengths: powerful and light. great price Weaknesses: none yet Bottom Line:
Submitted by
dubdryver
a Racer Date Reviewed: April 26, 2012 Strengths: Great stopping power, relatively light, durable, problem free Weaknesses: A bit of an on/off feel, there isn't tons of modulation Bottom Line: Expand full review >>Favorite Trail: Many! I like to travel Price Paid: $240.00 Purchased At: Can't remember Similar Products Used: Hayes Stroker Gram Hayes Stroker Trail Avid Elixir 7 Avid Elixir CR SRAM XX Avid BB7 Bike Setup: Salsa Selma SS EC70 cockpit/EA70 stem Roval Control EL 29 wheels Rockshox Reba RLT Ti Fork
Submitted by
cman8 Date Reviewed: April 16, 2012 Strengths: Great set of brakes for the price. Stop on a dime, easy to install, and great modulation. I bought a set of these for about 200 bucks. Very good value for the buck. Formula CS has been awesome too. Weaknesses: Rotors squeal when wet and my front one squeals when applying light brake pressure. Might be user error but nontheless annoying. Bottom Line:
Submitted by
The Mounty
a Cross Country Rider
from Hartbeespoort, South Africa Date Reviewed: March 15, 2012 Strengths: Its light, brakes well whether you're slamming them or just want to slow down - great control. They look awesome! Weaknesses: None Bottom Line: Expand full review >>Favorite Trail: Van Gaalens' Duration Product Used: 3 months Price Paid: $430.00 Purchased At: Trinity Cycles Similar Products Used: Tried all Avid version and these are far more superior at a great price.
Submitted by
surlychad
a All Mountain Rider
from Auburn, WA USA Date Reviewed: March 10, 2012 Strengths: Great power, great lever feel, modulation. Weaknesses: A little noisy in the break-in period. Bottom Line: Expand full review >>Duration Product Used: 3 months Purchased At: Validus Wheels Similar Products Used: Hayes mags, Hayes HFX, Shimano XT, Shimano Saint. Bike Setup: Ellsworth Epiphany, Loaded custom hand built wheels, e.Thirteen cranks,
Submitted by
jeffw-13
a Weekend Warrior
from Beaver Falls, PA Date Reviewed: January 17, 2012 Strengths: Great feel & modulation. Very powerful Weaknesses: None Bottom Line: Expand full review >>Favorite Trail: West Branch Ohio Duration Product Used: 6 months Price Paid: $215.00 Purchased At: ebay Similar Products Used: Formula ORO Bike Setup: Canfield Yelli Screamy 29er 180 front 160 back
Submitted by
TrailMeat
a Weekend Warrior
from Denver Date Reviewed: January 10, 2012 Strengths: Inexpensive,Excellent Modulation,Lever Adjustment, Don't fade Weaknesses: Get noisy riding during cooler temps using sintered pads. Bottom Line: Expand full review >>Favorite Trail: Any CO Front Range Trail Duration Product Used: 1 Year Price Paid: $150.00 Purchased At: Ebay Similar Products Used: Avid Juicy 7's and Elixers and Shimano XT and XTR Bike Setup: Yeti 575 and Kona Four Supreme
Submitted by
tyrebyter
a Weekend Warrior
from Albuquerque, NM, USA Date Reviewed: November 21, 2011 Strengths: Power, feel, consistency Weaknesses: Noise Bottom Line: Expand full review >>Duration Product Used: 6 months Price Paid: $260.00 Similar Products Used: Avid Elixer, Hayes mechanical, Tektro mechanical, Shimano Deore M595 Bike Setup: Rocky Mountain Altitude 50 RSL
Submitted by
bionicman
a Weekend Warrior
from KINGMAN,AZ USA Date Reviewed: November 11, 2011 Strengths: power, fit finish, looks, ease of setup, consistency, weight Weaknesses: modulation, requires a heavy pull to get that power which hurts modulation Bottom Line: Expand full review >>Duration Product Used: 1 Year Price Paid: $200.00 Similar Products Used: bb7, shimano xt Bike Setup: Lenz Behemoth 29r formula rx, hammerschmitd, flow/hadley, saint derailleur, fox rp23, rock shox 120mm air ti 
Submitted by
Sablotny
a Cross Country Rider
from Sonoma County, California Date Reviewed: October 29, 2011 Strengths: Good looks, solid construction - well shaped magnesium levers, steel lever pivots (unlike Magura's Delrin), no need to bleed after a year. Light weight for their moderate price compared to the competition. Weaknesses: Noisy. One master cylinder buzzes like an angry bee. While braking I seem to get it all - squealing, honking, chattering, vibration. Kool Stop replacement pads helped a little. Both rotors slightly warped after only ~400 miles Bottom Line: Expand full review >>Favorite Trail: Lawndale Duration Product Used: 1 Year Price Paid: $300.00 Purchased At: Ebay from France Similar Products Used: Avid BB7, old skool Shimano Deore hydraulic, Magura Martas Bike Setup: Titus Racer X, XT + XTR
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