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Formula RO Hydraulic Disc Brake


This is the Formula RO Hydraulic Disc Brake. The only caliper in the world that uses oval pistons, providing the feeling of a 4 piston brake with the weight and maintenance of two. The brake also features a cantered…

Formula RO Hydraulic Disc Brake


This is the Formula RO Hydraulic Disc Brake. The only caliper in the world that uses oval pistons, providing the feeling of a 4 piston brake with the weight and maintenance of two. The brake also features a cantered master cylinder for an enhanced lever feel. For 2013, Formula has used their Enhanced Caliper Technology (ECT) for increased pad rollback and easy installation.


Grooves have been used on the piston face, between pad and piston, to allow for much greater airflow and heat dissipation. In short, at 360 grams, the RO sets the benchmark for brake power and performance at a XC brakes weight.


Master Cylinder:

Optimized forged “semi” – radial MC design improves ergonomics and lever ratio, High capacity, integrated reservoir, Removable handlebar clamp, Flip-flop master cylinder assembly, Forged lever with integrated tool-free reach adjust, Hard anodized MC piston, Laser etched logo


Forged one-piece post mount style caliper, Worldwide unique oval piston technology, Top and bottom vented caliper body for maximum cooling and performance, Additional bleeding port simplifies the bleeding process, Top-Loading pads simplify pad changes, Laser etched logos


Forged aluminium, anodised gloss black, TFRA (Tool Free Reach Adjustment ) integrated into lever


Black Front – 100cm, Rear – 165cm


Sintered Compound



Caliper Mount:

Post Mount


Not Included

360g (85cm hose, 160mm 1-piece rotor and mounting hardware)

Buying Guides



A buying guide that offers general advice on brakes

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We offer a range of delivery services for our UK and International customers. UK Customers can select our FREE standard delivery option on most non bike orders over £20. Or if you’re in a hurry you can upgrade to our Next Day, Saturday or Sunday delivery services. You can also use our free Click & Collect service, where you can collect your purchases from a choice of over 50 Evans Cycles stores. International customers can benefit from FREE delivery on most orders and save UK VAT if we are shipping outside of the EU.

Bike build & delivery

UK bike delivery charge includes assembly by our fully trained mechanics, pre-delivery inspection and safety check, packing in our custom bike box, multi-tool and delivery from only £9.99 per bike.Click here to see how we deliver your bike

Standard, Next Day, Saturday & Sunday UK delivery

We offer a FREE standard delivery service on orders over £20, as well as Next Day, Saturday & Sunday delivery options to UK addresses. Click here for more details

Click & Collect

Using our Click & Collect service your order will be delivered to a choice of over 50 Evans Cycles stores nationwide for collection. This service is FREE of charge for all orders. To check store stock and collection times, use the "Check store stock" button above. Click here for more details

International delivery (Incl BFPO, ROI, Channel Island & Isle of Man)

We offer a FREE delivery service on most International orders. Orders delivered outside the EU are exempt from VAT. To calculate the charges for your order simply add products to your basket and proceed through the checkout process, where you will need to enter your delivery details. Our website will present you with the relevant delivery options and the charges for your basket of goods. Click here for more details.

Easy Returns

Our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you are not, please feel free to return your goods within 90 days of the purchase date for a full exchange or refund. Returns can be made in your local store or sent back to our distribution centre.

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