Sram Red XPLR AXS in Review on the Trek Checkmate SLR 9 AXS
Sram's new premium gravel group meets Trek's fastest gravel bike - we tested the duo in a speedy threesome with rider Hannes Lederer.
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8.99 kg, 13-speed Rival XPLR and 4,699 euros: how Simplon’s versatile gravel bike performs in everyday riding between tarmac and gravel.
Sram's new premium gravel group meets Trek's fastest gravel bike - we tested the duo in a speedy threesome with rider Hannes Lederer.
Classical concert instead of heavy metal: The new battery-free shifting group and a beginner-friendly brake with pleasant power transmission in a double review.

The chain rustles softly, the Slate brakes quietly and powerfully, the gold shines festively, rejoice, Christmas is coming soon - with shifting and braking away from the Sramainstream.
Everything with extra spice: Almost a week of future music come true with Bosch's latest motor generation including ABS and eShift. What can the complete package do, what does it bring?
After presenting the mechanical 12-speed gravel group last autumn, the Japanese are now following up with an electronic version - but initially only with a double crankset. And through the accessory brand Pro, an aero carbon handlebar is also being contributed.
Over 350 new parts in the range - for the coming season, Hartjes' accessories label has virtually outdone itself. Here are the highlights at a glance.

Even a crankset is a science - or how the devil in the detail of the Race Face ERA convinced me despite initial skepticism.
Every watt counts: are ceramic bearings a worthwhile tuning method for frequent riders and weight weenies, or is this just wishful thinking? Armed with a detailed background analysis and the practical experience of a long-term test, we are going to get to the bottom of the ceramic balls myth.
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