Shimano unveils flat mount road hydro disc brake caliper

Clean, integrated look specifically developed for road bike applications

Brakes Disc News
The new flat mount caliper bolts from the bottom, which results in the caliper sitting flush to the chainstay.

The new flat mount caliper bolts from the bottom, which results in the caliper sitting flush to the chainstay.

Shimano made news this week expanding its hydraulic road disc brake offerings with the first iteration of its new flat mount hydraulic road disc brake caliper standard. The road-specific calipers are now available at Shimano 105 and Ultegra levels. Also announced were a new 10-speed Tiagra road group and the WH-RX010 road disc brake wheel set.

The BR-RS805 Ultegra and BR-RS505 105 calipers offer a clean, integrated look specifically developed for road bikes. The lower profile caliper is designed to improve aerodynamics while maintaining Shimano’s one-way bleeding and easy tool access. Both the calipers use new pads that are not compatible with mountain calipers.

The new calipers and pads are not cross compatible with Shimano's MTB products.

The new calipers and pads are not cross compatible with Shimano’s MTB products.

The addition of 11-speed compatible mechanical shift levers that integrate with either of the new flat mount calipers as well as previous Shimano road disc calipers complete the system. The new levers have reach and free stroke adjustment as well as Vivid index shifting, and the same ergonomics of more expensive product.

The new ST-RS505 shift lever is Shimano’s most affordable  hydraulic road offering to date.

The new ST-RS505 shift lever is Shimano’s most affordable hydraulic road offering to date.

Meanwhile, the new Tiagra 10-speed road group continues to trickle down features from the higher level groups. Highlights include expanded gear ranges with 2×10 and 3×10 options, an 11-34t cassette, new cranks, refined derailleurs and increased braking power. There’s also a higher leverage design front derailleur with braze-on support bolt for improved stability. The new cranks feature an offset, 110 bcd, 4-arm design with 3×10 and 2×10 gear options. In back cassettes options include 11-25, 12-28, 11-32 and 11-34. The new brakes are claimed to offer a 30 percent increase in brake power and better adjustability.

Finally, Shimano has further expanded its road disc wheel line with WH-RX010, which joins the more premium WH-RX830 and WH-RX31 wheel sets. The WHRX010 is Shimano’s third performance road disc brake wheel set on the market, and is designed to be an affordable all-around wheel for today’s modern road bikes featuring Centerlock rotor mounting, 11-speed compatibility and a versatile 23mm OD rim width. The WH-RX010 will retail for $300 per pair.

About the author: Jason Sumner

An avid cyclist, Jason Sumner has been writing about two-wheeled pursuits of all kinds since 1999. He’s covered the Tour de France, the Olympic Games, and dozens of other international cycling events. He also likes to throw himself into the fray, penning first-person accounts of cycling adventures all over the globe. Sumner, who joined the RoadBikeReview.com / Mtbr.com staff in 2013, has also done extensive gear testing and is the author of the cycling guide book "75 Classic Rides: Colorado." When not writing or riding, the native Coloradoan can be found enjoying time with his wife Lisa and daughter Cora.


Related Articles


Leave a Reply

Your email address will not be published. Required fields are marked *

*
*



THE SITE

ABOUT ROADBIKEREVIEW

VISIT US AT

© Copyright 2020 VerticalScope Inc. All rights reserved.