SPEEDONE 4 Piston Cooling Hydraulic Brake System Technology
Thermal management through integrated cooling channels prevents brake fade on e-bikes where motor assistance compounds descent speed and braking demands beyond standard mountain bike stress. The four-piston cooling system maintains consistent modulation across extended Alpine XC races and multi-hour all-mountain expeditions where conventional brakes overheat after 30 minutes of continuous descent. Available in 850mm and 1600mm hose configurations, the SPEEDONE 4 piston hydraulic brakes fit hardtail cross-country frames through full-suspension all-mountain rigs without custom hose extensions. Electric-assist mountain bikes demand brakes rated for 25+ kph sustained speeds, and these hoses route cleanly through internal routing channels found on modern SPEEDONE frames. Cooling fins on the caliper exterior radiate heat during technical descents while dual-piston backup systems engage automatically if primary seals wear, ensuring redundant safety for gravity-assisted terrain.
A***Z –
Very satisfied with the product, very beautiful, looks of great quality. Need to mount them on the bike and test.
s***r –
The brakes arrived, but unfortunately all the screws were missing and the entire design is different from what is shown in the pictures here. The brake levers have no holes and the clamps for attaching to the handlebars are not detachable, so the grips have to be removed! The cover from the brake hose to the lever was also missing. No instructions. I bought 2 pairs and both were missing everything. I received a refund of €3 per pair, but I can’t use that money to buy covers, screws, washers, etc.
I was told that the item has been revised, which is more of a negative for me since the brake does not look like it does in the picture.
s***r –
The brakes arrived, but unfortunately all the screws were missing and the entire design is different from what is shown in the pictures here. The brake levers have no holes and the clamps for attaching to the handlebars are not detachable, so the grips have to be removed! The cover from the brake hose to the lever was also missing. No instructions. I bought 2 pairs and both were missing everything. I received a refund of €3 per pair, but I can’t use that money to buy covers, screws, washers, etc.
I was told that the item has been revised, which is more negative for me since the brake does not look like it is shown here.
К***ч –
There are no complaints about the functionality; I didn’t understand the purpose of the new fittings, and it was difficult to install without specialized tools. The hydraulic lines are directly flush in length.