Manitou | Jack Dropper Seatpost - 30.9mm / 160mm
Manitou | Jack Dropper Seatpost - 30.9mm / 160mm

Jack Dropper Seatpost

311-39431-A001

Regular price $434.99 Sale price$217.49 Save $217.50
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Focus on the ride, allow the Jack to hold your saddle exactly where you set it!

The Manitou Jack dropper post is available in three drop options – 185mm, 160mm, and 80mm – for improved handling when you need it. Available in 30.9 and 31.6mm diameters, the Jack includes a Manitou under bar lever which features a cartridge bearing for smooth, precise operation.  To further the smooth operation and setup on the 185mm and 160mm post the included 1.1mm cable with Manitou specific cable head negates the use of the cable clamp, allowing all the cable tension adjustment to be completed on the lever side.  80mm post use a standard derailer cable for its lever side adjustments.  

•80mm,160mm, or 185mm Travel
•30.9mm or 31.6mm Diameter
•Cable Actuated lever
•Internal Cable Routing

•Travel: 80mm, 160mm, or 185mm
•Post Diameter: 30.9mm and 31.6mm
•Weight: 525g (30.9) 565g (31.6) for 185 and 160mm, 365g (30.9) 380g (31.6) for 80mm
•Remote: Manitou Underbar, SRAMM peacemaker compatible
•Length (without actuator): 485mm (160,185mm) 320mm (80mm)
•Max Insertion: 227mm (160,185mm), 197mm (80mm)
•Min Insertion: 130mm (160,185mm), 80mm (80mm)
•Clamp Style: 2 bolt
•Saddle Bolt Material: Steel
•Saddle Clamp Material: Aluminum
•Actuator: 360 degree toolless rotation 32mm length
•Cartridge Bleed: Auto-reset function
•Max Rider Weight: 250lbs

• Manitou Underbar Lever
• Jagwire dropper specific cable and housing

Jack in the News

“We are very impressed with the design and function of the dropper post.”

NSMB media logo

It all adds up to one awesome product and definitely one you should consider for your next dropper.”

Vital MTB logo

"For those who ride hard, and those who hardly want to worry about maintenance, the Manitou Jack is a solid choice."

singletracks logo

Customer Reviews

Based on 5 reviews
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K
Kalo A
Orgasmicly smooth

Right out of the box you will find it smells a bit like the bikeyoke revive 2.0…
The lever that comes with I have not had a chance to use yet, but I like the short throw on it and am eager to try it out.
Further, after getting it out of the box and onto the bike, it just needs a few revive cycles, and after that it is good to go! Rode 85 miles on it the first weekend and it was faultless, and buttery smooth. Also noteworthy that the bikeyoke guys have a 3.0, and the Jack post (2.0) could be given those updates as well with a few parts from bikeyoke - but I truly see no need.

At the current sale price there is no reason not to buy a couple of these.

M
Matthew Maliniak
Simply Amazing

Have only heard great things about this dropper and can say I was not disappointed. It was super easy to install and is so much smoother than the Fox Transfer I'm coming from. Definitely would recommend!

N
Nicholas Jackson
Can't Be Beat

All of the features of my favorite dropper (bike yoke revive) with my favorite suspension company's logo on it! Buttery smooth, and I'm sure it will be as long-lived as the others I have in my fleet!

N
Nate Hoff
The perfect post

Everything I love about my BikeYoke post in a Manitou package! Knowing I won't have to rebuild my post on riding trips is refreshing. It always works flawlessly. If you're on the fence commit to it and you will never look back. 12/10 would recommend.

R
R.W.
Jack 80 mm review

I purchased two posts to use on Specialized Epics ridden mostly on Midwest singletrack. Install and setup was straightforward on both bikes, and did not require any additional effort other than minor adjusts at the release lever. The seat post is a well made and light weight compared to a rigid post.

The lever is a solid unit for a manufacturer provided piece. It has a nice shape with plenty of position adjustment.

After a few rides, I found this to a great component that works well. I does this job reliably with no additional thought. For the type of riding we have in this region, this is an excellent choice.


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