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RockShox Flight Attendant Automatically Opens and Closes Your Suspension as You Ride

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Suspension sensor in fork


For mountain bikers, front and rear suspension smooths out terrain, but sometimes suspension can feel bouncy when pedaling. A lever on most shocks lets you switch between open, trail, and locked mode to stiffen up the suspension when you need it—and to engage “full squish” for gnarly descents. But anyone who’s forgotten to open their locked suspension before a big downhill knows that user error often outweighs the benefits of moving that lever from fully open. It’s easier to deal with the discomfort and inefficiency of leaving the suspension open. That doesn’t need to be a pain point any more, thanks to the RockShox Flight Attendant.

The battery-powered electronic system has sensors on the bike’s shock, fork, and crank that adjusts your suspension every 5 milliseconds using algorithms and a miniature motor. There’s no need to worry about opening or locking your suspension again.


Flight Attendant uses a suite of sensors to interpret rider and terrain data and anticipate the best suspension position.
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The beauty of self-adjusting suspension

The system bounces between “Open,” “Pedal,” and “Lock” modes to suit the terrain and your pedaling. In the time it takes to blink, RockShox Flight Attendant makes about 80 suspension adjustments based on input it’s getting from you and the trail.

The predictive system opens the fork and shock when it senses obstacles in the trail, and closes or partially closes when it senses pedaling, a weight shift, or corporeal microadjustment. You can fine-tune the feel with three modes to choose from. Adjustments to the system, manual overrides, and on and off are all controlled from the top of the fork in conjunction with an up button on the dropper post, or with SRAM’s AXS app.

Red bike with shock absorbers and sensors

Canyon bike with RockShox Flight Attendant sensors on the shock.
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Racers and everyday enthusiasts will benefit from the efficiency and related energy savings this system delivers.

Flight Attendant is available on select Enduro bikes, from Specialized, Trek, Canyon, and YT; select forks with 120mm-190mm travel; and one shock: RockShox Pike Ultimate Flight Attendant, Lyrik Ultimate Flight Attendant, and ZEB Ultimate Flight Attendant. The rear shock option is RockShox Super Deluxe Ultimate Flight Attendant. Flight Attendant cranks include XX1 and X01 models with either 165mm, 170mm, or 175mm cranks and 30T, 32T, 34T, and 36T chainrings.

How much the system costs is up to the manufacturer.

The fork, rear shock, and pedal sensors, both SRAM AXS batteries, and the difference in weight between a 1- and 2- button left controller add around 11 ounces to a bike’s weight, depending on spec.


Bombing downhill has never felt so good.
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To get the most out of Flight Attendant, set your sag and adjust your rebound. You won’t have to mess with locking and unlocking your shocks ever again. The system makes a bike feel extremely efficient pedaling, and always ready for rough riding when it’s pointed down the fall line. SRAM says the AXS batteries in the fork and shock will last 20 to 30 hours before requiring a recharge. The AAA Lithium battery in the pedal sensor and CR2032 battery in the controller should last 200 hours.

It’s easy to set up. After my sag and rebound were dialed, I woke up the system by turning my cranks, I pressed a button on my fork to calibrate Flight Attendant and was ready to ride. After that, Flight Attendant knew my settings and I didn’t need to recalibrate again.

For now, if you want Flight Attendant, you’ll need to buy a new bike. In the future, there’s a good chance you can add it to the shock, fork, and crank you have. For riders who opt in, brace for a ride that helps you get the most out of your bike’s suspension, and for having the energy to ride farther and faster as a result.


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10 Best Porters to Drink Right Now

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A bottle of Deschutes Black Butte Porter




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Best Time-Under-Tension Workout for Total-Body Strength

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Barbell Back Squat


The key to 360-degree muscle: 90-degree eccentric isometrics. It might seem like we’re throwing a lot of geometry at you, but the concept behind time under tension (TUT) is simple, says Joel Seedman, PhD, owner of Advanced Human Performance: “Perform the lowering phase of a movement in a slow, controlled fashion, usually 3 to 5 seconds; pause in the stretched position, typically around 90 degrees; then perform the lifting phase in a powerful yet controlled fashion.” Believe us, a time-under-tension workout can humble even seasoned lifters…Eccentric isometrics are like the pressure cooker of training.

“Rather than mindlessly performing slow-tempo reps, you’re using the increased time under tension as a means to fine-tune your body mechanics and alignment, which requires more mental engagement and focus,” Seedman adds.

If you want to forge functional muscle mass and strength while simultaneously bulletproofing the joints and connective tissue, give this 10-move, full-body eccentric isometrics workout a go.

Directions

Perform the following moves as 90-degree eccentric isometrics following the above protocol. Use heavy weight, but not at the detriment of proper form. Rest 60 to 90 seconds between sets and 2 minutes between circuits. Perform once every 2 to 4 days for optimal results.

Best Time-Under-Tension Workout for Total-Body Strength

Circuit 1

Marius Bugge

A. Barbell Back Squat

Set a squat rack up with heavy weight, then grasp bar and step under it. Squeeze shoulder blades together, then stand to unrack bar and step back with feet shoulder-width apart. Inhale, hinge at hips and slowly bend knees to 90 degrees. Pause, keeping natural arch in low back, then extend through hips to powerfully stand. 3 x 4-6 reps

Athletic man wearing gray T-shirt and maroon shorts renegade row
Marius Bugge

B. Renegade Row

Start in the top position of a pushup with hands shoulder-width apart on moderate-to-heavy dumbbells (shown). Explosively drive right elbow back to row dumbbell toward ribs while balancing on opposite hand and feet. Pause, then slowly lower weight, stopping a few inches above floor. Switch sides after all reps are done. 3 x 5 reps each side

Circuit 2

Athletic man wearing gray T-shirt and maroon shorts doing renegade row Dumbbell Bentover Row in gym
Marius Bugge

A. Dumbbell Bentover Row

Stand with feet hip-width apart, holding two moderate-to-heavy dumbbells in front of thighs, palms facing you. Push hips back and hinge torso forward so it’s nearly parallel to floor, soft bend in knees. Dumbbells should be near shins. Drive elbows back to row weights toward ribs. Pause, then slowly lower down for 3 to 5 seconds. 3 x 4-5 reps

Athletic man wearing gray T-shirt and maroon shorts doing Incline Dumbbell Chest Press with Legs Raised 
Marius Bugge

B. Incline Dumbbell Chest Press with Legs Raised 

Set an adjustable bench to a 30- to 45-degree angle and lie back with dumbbells in either hand. Engage core and lift legs off floor, flexing feet. Press weights overhead, palms in. Slowly lower to 90 degrees, staying tight and compact. Pause, then drive weights up directly over chest. 3 x 4-5 reps

Circuit 3

Athletic man wearing gray T-shirt and maroon shorts doing Dumbbell Bulgarian Squat
Marius Bugge

A. Dumbbell Bulgarian Squat

Stand lunge-length in front of a flat bench, holding heavy dumbbells in each hand by your sides, palms facing in. Rest the ball on top (shoe’s laces) of your right foot behind you on the bench. Slowly lower your body until your front thigh is parallel to the floor. Pause, then drive through your heel to stand. Switch sides after all reps are complete. 2 x 3-4 reps each side

Athletic man wearing gray T-shirt and maroon shorts doing Single-leg Romanian Deadlift
Marius Bugge

B. Single-leg Romanian Deadlift

Stand with feet hip-width apart holding dumbbells or kettlebells. Drive right leg up, foot flexed, knee aligned with hip, making a 90-degree angle. Hinge at hips as you slowly lever your torso toward floor, lowering weights and driving right leg back for counterbalance. Hold, then squeeze glutes to reverse. 2 x 3-4 reps each side

Circuit 4

Athletic man wearing gray T-shirt and maroon shorts doing pullup
Marius Bugge

A. Pullup

Hang from a pullup bar using an overhand grip with legs extended and feet flexed. Engage lats and draw shoulders down your back, then pull yourself up until chin is higher than hands. Pause at the top, then slowly lower. Pause at bottom, then reset before your next rep. 2-3 x 4-5 reps

Athletic man wearing gray T-shirt and maroon shorts doing Kneeling Overhead Barbell Press
Marius Bugge

B. Kneeling Overhead Barbell Press

Hold a bar with moderate-to-heavy load at shoulder level with forearms perpendicular to floor. Kneel at end of bench with feet flexed to grip edge for support. Inhale, engage your core and glutes, then press the bar overhead, pushing your head forward so it passes your face, exhaling at the top.
Slowly lower until elbows are at 90 degrees, then hold to maintain tension. Begin your next rep from here. 2-3 x 4-5 reps

Circuit 5

A. Dumbbell Pushup

Place hands on dumbbells (this provides greater range of motion) at shoulder width and feet wider than shoulder width with just toes touching the ground. Keep head neutral and hips high to increase tension on core, chest and tris and reduce stress on spine. Slowly lower to the floor. Stop
once elbows hit 90 degrees, pause, then push up to start. 1-2 x 6-8 reps

B. Biceps Curl

Stand with feet hip-width apart with moderate-to-heavy dumbbells in each hand hanging by sides. Engage biceps to curl the weights up, keeping upper arms still. Pause at the top, then lower slowly. Don’t let arms drop all the way down to keep greater time under tension on biceps. 1-2 x 6-8 reps


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The Best Jump Ropes for a Killer Cardio Workout

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The Best Jump Ropes for a Killer Cardio Workout




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