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Crank Brothers Joplin Seatpost Adjustable


  • Average Rating: 3.4/5
  • MSRP: $ 285.00
  • # of Reviews: 67

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Product Description

Crank Bros Joplin Adjustable Seatpost: 7000-series aluminum height-adjustable seatpost with hydraulic valve system with a 3 inch range of height lock. 20mm setback, infinitely adjustable seat clamp.


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Reviews 1 - 15 (67 Reviews Total) | Next 15

User Reviews

Overall Rating:1
Value Rating:1
Submitted by dinobino22 a Weekend Warrior from Walnut Creek, CA, USA

Date Reviewed: December 29, 2011

Strengths:    NONE! I'd rather spend extra $ on other brand of seat post. Bad business practice!

Weaknesses:    Leaks and does not lock in place. Not reliable. 2 year warranty is a hoax (false advertising).

Bottom Line:   
This seat post leaked after a year of occasional use. I returned it to Crank Brothers for repair since its has 2 year warranty only to find out that they want to charge me $30 for an improved seal plus shipping and handling ($9). They said if it's less than a year they would repair it for free. Better spend my money who stand behind their products. WILL NEVER BUY THEIR PRODUCTS!!!

Expand full review >>

Favorite Trail:   Mount Diablo

Duration Product Used:   1 Year

Price Paid:    $150.00

Purchased At:   Chain Reaction Cycle

Bike Setup:   BMC Superstroke01


Overall Rating:4
Value Rating:3
Submitted by epic510 a Weekend Warrior from

Date Reviewed: December 15, 2011

Strengths:    Makes you 100% more confident on down hills. Drop the post and bombs away! No more worries about going over the bars because of not being able to get behind the seat.

Weaknesses:    Seat will not stay in position! Any time I hit a bump while seated the seat ratchets upwards and I have to knock it down with my fist.

Bottom Line:   
I don't think I could ever go back to a non-adjustable post. Awesome upgrade. I just wish it would hold the seat in place. I still use it and it's a lot better than a standard post. The drop function with the remote works flawlessly. Just wish it would hold the seat in place... I did buy an older model and have heard the newer ones have addressed the seat issue.

Expand full review >>

Duration Product Used:   6 months

Price Paid:    $100.00

Purchased At:   e-bay

Similar Products Used:   standard posts

Bike Setup:   09 epic


Overall Rating:2
Value Rating:1
Submitted by craftworks a Cross Country Rider from Brisbane

Date Reviewed: October 22, 2011

Strengths:    Designed on looks and ease of use

Weaknesses:    Low end product don't do it, play in post ,pumps out oil

Bottom Line:   
The Crank Bros. low-end seat post worked great for about 10 rides then started to go soft. On removal rubbish post pumped oil into frame causing more drame, slipping seat post.

Have returned twice for warranty repairs last time in March and still waiting for it's return.

Crank Bros. produce cool looking products although if your into over servicing then buy - I will never trust CB again.

Expand full review >>

Duration Product Used:   3 months

Price Paid:    $130.00

Purchased At:   CRC

Similar Products Used:   KS 900i - perfect

Bike Setup:   blur LTC


Overall Rating:1
Value Rating:1
Submitted by wildwest a Weekend Warrior from Seattle, Wa.

Date Reviewed: October 14, 2011

Strengths:    Infinitly adjustable in 3'

Weaknesses:    It breaks

Bottom Line:   
I'm on my second one. After only one month, the first one wouldn't stay up. I sent it back to CL, they sent me a new one. On this one, I couldn't get the seat clamp tight enough, now matter how much I tightened it. It would be ok for awhile the, i would come off of a small drop & the nose or the tail would fall back. Last time it happened, I pulled the bolt through the clamp &, the clamp broke in half.

Expand full review >>

Favorite Trail:   Atomic Dog

Duration Product Used:   6 months

Price Paid:    $120.00

Purchased At:   chainlove

Bike Setup:   completely custom


Overall Rating:5
Value Rating:5
Submitted by triplereffi a Cross Country Rider from Israel

Date Reviewed: August 16, 2011

Strengths:    Works great, even under mud, rain or desert thin dust. Although some wrote issues about its reliability, I have found this seat-post to operate exactly as it should be.

Weaknesses:    If you want it to function well, you need get rid from ~30 USD for an annual maintenance. You can do it by yourself.

Bottom Line:   
I used the 3" version on Specialized Enduro, before the SC Butcher, and it worked well. If the maintenance is done at least every year, you will not experience any failure issues, what so ever.

Expand full review >>

Duration Product Used:   More than 3 years

Price Paid:    $215.00

Purchased At:   CBO. CA

Bike Setup:   2011 Santa Cruz Butcher


Overall Rating:4
Value Rating:4
Submitted by DIRTJUNKIE a Weekend Warrior from San Diego

Date Reviewed: July 2, 2011

Strengths:    The obvious infinate adjustment within its range (on the fly) which relates to a less hassle free ride.

Weaknesses:    Seat clamp tends to slide.

Bottom Line:   
I love this post, I have been on it for around two years. I originally went in to buy the Maverick Speedball only to find out that Crank Brothers had bought the rights to it. The salesman insisted that CB was.dedicated to fixing any design flaws before re-releasing it under thier name. I bought one of the early released ones. Which in my mind explains the high price I paid $325 which is ok if it worked properly. Which is basically what I have experienced. Like I said earlier my only issue has been with the seat post clamp occasionally slipping. Which I have heard they later altered the design and fixed it. I have had no other issues that many others have complained about. But that could be due to the amount of ride time I have on it. I ride on average three times a month at three hour rides. So hopefully my luck will continue as I absolutely love this.post especially the remote lever on the bars. No need to remove your hand to do a quick adjustment. I also think it has much a better visual higher quality look to it than other similar products offered.

Expand full review >>

Favorite Trail:   The one i'm on.

Duration Product Used:   2 Years

Price Paid:    $325.00

Purchased At:   Beyond Bikes



Overall Rating:3
Value Rating:3
Submitted by sgf2 a Weekend Warrior from Portland

Date Reviewed: June 29, 2011

Strengths:    Infinite adjustments.
Customer Support is great at CB


Weaknesses:    Can't lift the bike by the seat (you'd be suprised as to how often you lift the bike this way on a normal ride). Has to be rebuilt each season (or more from what others are saying)

The fact that I know Customer Support is great at CB...


Bottom Line:   
There are better posts to buy out there than this one. The CB looks slick and comes in a pretty box but its too finicky and has too many rules. Not being able to lift by the seat is a huge deal. I didn't think it would be, i was wrong... A riding buddy of mine has the KS and if I could do it again i'd buy that one. its got 5 inches and you can lift the bike by the seat.

My post lasted about one riding season before it started to develop issues. I called up CB and they said to send it in. Since it was within a year of purchase they fixed it for free. I just paid $12 for shipping one way. If I understand them the next time I send it back (It will be over a year from purchase now) I'll have to pay around $35 for the repairs. I had a blown a seal and something else, and from door to door the post was off my bike for about 3 weeks.

I will say this, these adjustable seatposts are amazing. You need one. I will never ride my trail bike without one (well I did but that was due to the repairs). I honestly raise and lower the seat more than I shift. They are so good I'm debating picking one up for my DH rig too.

Expand full review >>

Favorite Trail:   Anything in Canada

Duration Product Used:   1 Year

Price Paid:    $225.00

Purchased At:   Universal Cycles

Similar Products Used:   None

Bike Setup:   Giant Reign 0 with a fox 36 and tons of other upgrades


Overall Rating:5
Value Rating:5
Submitted by Varaxis a Weekend Warrior from SoCal

Date Reviewed: April 20, 2011

Strengths:    Can lower to any point within travel limit
Smooth
Easy maintenance


Weaknesses:    Develops minor [twisting] play over time (single guide keyed version)
Picking up the bike by the saddle when it's lowered and having it extend is kind of annoying


Bottom Line:   
The remote version makes this post so much more useful! Conversion kit costs $50 (MSRP), so consider that if you think the lever version is a deal.

Buy it, swap posts, install the remote and cable, install a saddle and it's good to go. The clamp mechanism works great and creak free.

My remote version is solid, but my lever version has a couple issues. Remote version hasn't developed play, but the lever version has. Lever version also somehow got stuck in the "lever-activated/on" position, but I took it apart and fiddled with it and managed to get it to work without really doing anything to the internals.

After seeing its guts, I appreciate how this thing is so simply designed. I dunno why people are complaining about leaking. It's just an air spring cartridge housed within a stanchion that slides within the post. The air spring is bolted to the bottom and connects to the top, where the lever/cable hooks up. The stanchion just has 2 bushings and a part that sticks out as a guide. The post has a slot that the guide slides up and down in. The screw on bit is just a wiper seal. The stanchion is slathered in an excessive amount of orange grease. That is what "leaks". There's only a 10mm bolt on the bottom that holds the air cartridge to a screwed on bottom plate (the two holes are for drainage). There's a flathead screw there, which is a cap to the air valve for the cartridge. The only servicing you can really do is greasing the guide and the 2 bushings that help the stanchion glide within the post.

Warranty service is fairly simple. Just fill out a form, mail it in, and wait. I was about to send mine in, but wanted to check out the insides beforehand, and managed to fix it myself. It had something to do with the bottom plate unscrewing instead of the nut. Took off the valve cap and was able to get the nut off and have the bottom plate stay in. I did an overhaul and played with the lever to activate it and started to cycle the spring and it began to work properly again. No clue why, since it had something to do within the air cartridge or the activation mechanism within the stanchion, but saved a ton of trouble. CB's RA# is up to 27000. I wonder if that's how many claims they have dealt with so far...

Expand full review >>

Favorite Trail:   San Juan

Duration Product Used:   3 months

Bike Setup:   Giant Reign X0 (30.9 lever, stock), Superfly 100 (31.6 remote, retail)


Overall Rating:4
Value Rating:5
Submitted by harverto a Cross Country Rider from Birmingham UK

Date Reviewed: March 7, 2011

Strengths:    Makes XC rides much quicker as you can change the seat hight on the go!

Weaknesses:    The seat drops when it wants to! (untill you know how to look after it or the seals blow)

Bottom Line:   
The best advice i can give to any one with this post is, press the remote lever and leave it pressed while you cycle the seatpost up and down a load of times (I done mine about 50 times). This will eliminate any sponginess so the seatpost will not sag when you sit on it!

This is a great bit of kit (well the idea of a dropper post is) that will change you're riding for the better.

I only paid £50 for this with a remote kit so it was a real bargin this is the reason I've given it such a high rating! Would i pay full up for this? NO not with all the problems people keep having with them.

Expand full review >>

Favorite Trail:   Cannock chase

Duration Product Used:   3 months

Price Paid:    $50.00

Purchased At:   Pink bike

Similar Products Used:   This is my 1st dropper, lots of carbon posts

Bike Setup:   Trek Fuel EX 9.9 (2010my) XTR / XT drive train, MT zoom speed wheels, Bontrager rhythm elite wheels, Ritchey 4 axis stem, Carbon head spacers, Joplin seat post, lots of anodized red bolts, I'm sure thers a lot more but I can't remember right now!!!


Overall Rating:1
Value Rating:2
Submitted by AlsTrance a Cross Country Rider from Canberra

Date Reviewed: February 25, 2011

Strengths:    Looks good

Weaknesses:    Works for the first few months then it starts to fail. Doesn't pop up. Loses air. Compresses when it shouldn't. Cable crimps when you try to feed it into the seat post hole.

Bottom Line:   
Won't buy another. Might try another brand though.

Expand full review >>

Duration Product Used:   1 Year

Price Paid:    $150.00



Overall Rating:4
Value Rating:4
Submitted by david_asulin a Cross Country Rider from San Jose CA

Date Reviewed: February 12, 2011

Strengths:    It's nice but I think KS products are way better. Read what I think about it here:

http://bikestuffreview.blogspot.com/2011/02/kind-shock-i950r-review-adjustable.html


Weaknesses:    Looses air. Mechanical problems.

Bottom Line:   
It's nice but I think KS products are way better. Read what I think about it here:

http://bikestuffreview.blogspot.com/2011/02/kind-shock-i950r-review-adjustable.html

Expand full review >>

Duration Product Used:   Less than 1 month

Price Paid:    $190.00



Overall Rating:1
Value Rating:2
Submitted by Deuchant a Cross Country Rider from Denver, CO

Date Reviewed: January 30, 2011

Strengths:    When it works you'll love it

Weaknesses:    Constant maintenence issues, giving it a low rating because at $300 bucks it should be more reliable.

Bottom Line:   
Even with a peotective boot the seals leak and the post starts to sink at the top after 2 - 3 months of riding. It needs to be rebuilt with fresh oil about every 3 months with reasonable use. CB now wants about $50 US to rebuild it and ship it back to you. It's easy to do yourself, but if you want their new seals you have to send it to them. Overall a great product when it works right. Just very frustrating when it does not. Had it blow out completely on me in the middle of a ride and had to climb out about 1500 feet sitting at the lowest position. Carry a spare post when you ride.

Expand full review >>

Favorite Trail:   Anything at Buff Creek

Duration Product Used:   1 Year

Price Paid:    $295.00

Purchased At:   ebay

Similar Products Used:   none

Bike Setup:   Specialized M4 Stumpjumper Expert


Overall Rating:2
Value Rating:1
Submitted by Consuela a Weekend Warrior from CA, USA

Date Reviewed: January 28, 2011

Strengths:    Looks nice; remote; choose any drop amount, not just 1 or 2 down positions. I love having an adjustable seatpost; it has changed my riding style!

Weaknesses:    Seals give out and you must have the seatpost rebuilt by Crank Brothers. Every now and then, Seat clamp comes loose, causing seat tip to come up.

Bottom Line:   
I loved this product for the first 10 months! And then the seals stopped holding and the seat would sink while I was riding. I sent it back to Crank Brothers and they fixed it under warrenty, which took about 4 weeks with shipping. Got it back and I was happy. Now 4 months after the rebuild, it is starting to act up again! This will be the second rebuild in less than 1.5 years.

My husband has also had his rebuild under warrenty, as well as the 3 riding buddies who also have the Joplin. It is so bad that my LBS has stopped carrying it.

If it wasn't for the seal issue, I would give 5 chilis. I expect more from Crank Brothers, especially given their prices, and don't think any of my parts should spend 1 month being rebuilt for every 4-6 months of riding. That's just not right.

Expand full review >>

Favorite Trail:   The one I'm riding

Duration Product Used:   1 Year

Price Paid:    $190.00

Purchased At:   Arts Cyclery

Bike Setup:   2008 Santa Cruz Heckler


Overall Rating:4
Value Rating:4
Submitted by jwins49 a Weekend Warrior from Anaheim, CA, USA

Date Reviewed: December 18, 2010

Strengths:    Obvious, adjustability, more confidence and control shredding downhill after that long brutal climb.

Weaknesses:    The part that I find the weak link is the seat adjustment(rotation of actual seat controlling how flat your seat is). It is real smooth at first but after a bit of use it is only smooth one way and has to be fully taken apart to adjust the opposite way. Not that big of a deal as it is one bolt, but just a bit of a hassle if you dont get it perfect at home before a ride.

Bottom Line:   
I havent had many of the problems others have, but I dont ride 250 miles a week either. I ride more like 100-150 miles a month so take that into consideration. I also have the manual adjusting type without the remote so that may play a part also. Not a big deal to me to quickly reach and drop my seat. Id rather have that then more things on my handlebars to break when I bail!

Expand full review >>

Favorite Trail:   many

Duration Product Used:   1 Year

Price Paid:    $165.00

Purchased At:   chainlove

Similar Products Used:   This is my first adjustable seat post.

Bike Setup:   Turner sultan dw link xl raw...LOVE IT!!!!


Overall Rating:1
Value Rating:1
Submitted by martij5 a Downhiller from Duluth Mn

Date Reviewed: October 22, 2010

Strengths:    Was awesome at first.

Weaknesses:    Poor durability

Bottom Line:   
I bought the remote seat post and it was awesome at first well worth every penny. It was much smoother then the gravity dropper however is now starting to have maintenance issues my friends gravity dropper is not. With any pressure/sitting on it, the post drops 3/4 of an in. After reading the reviews this will probably be just the begining. It is still usable so i'm going to send it in after it snows. I'll write another review after dealing with crank bros.

Expand full review >>

Duration Product Used:   6 months

Price Paid:    $150.00

Purchased At:   gear attack

Bike Setup:   Trek ex 8.5 setup for Free riding.



Reviews 1 - 15 (67 Reviews Total) | Next 15

Review Options:  Sorted by Latest Review | Sort by Best Rating

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