This thread is to be all about the BikeYoke REVIVE, and I´ll try to collect all relevant information and findings in this initial post. So it´s worth stopping by here once in a while, as I´ll try to keep the information in this post up to date constantly.
Before asking question, please check, if you you can find the answer in the first post.
Please note, that you should only work on your post, if you know what you are doing, and if you are an experienced mechanic. Those information may not be exhaustive.
Any work performed by the customer is performed at its own risk.
Alright, here we go.
Let me know, if you want me to add, or if I missed something.
GENERAL MAINTENANCE
Checking air pressure:
1. Place the post right side up and perform a proper reset. The post can remain in the frame.
2. Fully extend the post.
3. After the reset and extension, give it at least one minute of rest to let the oil drain off the reset valve area. Oil can then run down on the ID of the stanchion, away from the air valve and reset valve.
4. Remove saddle clamps and air valve cap
5. Attach air pump and air adapter.
NOTE: Never release air without a pump attached, as releasing too quickly can cause oil to exit the post, which then has to be refilled. Always use the pump´s release mechanism and release slowly !
6. Fill up the post to desired pressure.
Factory setting is 250psi. Less pressure will make the post slower, more pressure will make the post quicker. Don´t got below 200psi or higher than 300psi!
7. Remove the pump and adapter and make sure, not to cause pressure loss from inside the post when doing so. Even a little air loss could mean significant pressure loss, as the air volume inside the post is very small.
8. Reinstall air valve cap and saddle clamps.
NOTE: Only lightly attach pump and/or air adapter. If you tighten the adapter too firmly, the o-rings inside adapter and pump might get squeezed and cause the valve core to stay open for a split second too long. This can result in oil loss and will lead to malfunction. Be very careful when attaching the pump and adapter. Don´t tighten them too much!
Lower tube service
If your lower tube is dirty on the inside, or if the guiding pins and/or bushings are worn, your post should receive a lower tube service, our so called "100hr", service".
Here you can find a video for the lower service:
Read the description!
NOTE:
Do not release the air just for the lower tube service. This is not neccessary and you only risk losing oil. If you anyway want to release air, then please follow the guide above.
Upper bushing usually does not need to be replaced during the first couple lower tube services. It ist much more important to properly clean and re-grease the tubes, and replacing the pins and the small foam ring, if worn.
Recommended greases:
R.S.P. Soft Grease
R.S.P. Slick Kick
Buzzy's Slick Honey
SRAM Butter
KS Post Paste
NOTE:
Do not use WD40, Brunox, Fork Juice or similar (penetrating) oils on your REVIVE or on any other your suspension parts in general. Those products will just wash out your grease over time! Also do not use any other oil inside your lower tube. Proper grease is the way to go.
It is recommended to externally grease your stanchion wiper once in a while. Just apply some grease after wiping it clean and dry. Remove eccessive grease. This will help repell water and keep your rubber soft.
There are not a lot of special tools that you need for taking your post apart, and the most "exotic" ones might be circlip pliers. Those are the ones we use:
for big circlip for lower tube
Knipex 48 41 J21
https://www.knipex.de/index.php?id=1216&L=0&page=art_detail&parentID=1365&groupID=1457&artID=34787
for small circlip for the cartridge/lower bushing
Knipex 49 41 A11
https://www.knipex.de/index.php?id=1216&L=0&page=art_detail&parentID=1365&groupID=1458&artID=34789
TROUBLESHOOTING REVIVE
I had reset my REVIVE, but it still sags play
In rare cases, a lot of air could have gotten inside the hydraulic lockout tube, or the oil started foaming for some reason. In this case, it can require multiple resets to remove all air. Give your post a few seconds between every rest procedure and perform them not too quickly.
My REVIVE sags a bit under heavy load
Every hydraulically locked seatpost - no matter the brand - can be compressed slightly. This is normal. Just a few of the reasons for this behavior can be found below:
My remote lever does not return properly
This may come from one of the two reasons:
My post is moving very stickily and/or slowly
Find a few possible reasons below:
My remote (or reset function) is extremely hard to enage
This is very likely due to a big temperature difference between using the post and storing the post.
If the post has time to heat up, while it is not being used, the temperature increase will make the oil want to expand. Since the oil is housed in a closed space, the oil can not expand, instead the pressure increases.
Examples:
You ride in sub-zero temps, and store the bike at +20°C in the house.
You ride the bike in summer, then put the bike in your car, where it heats up.
This extra pressure needs to be overcome through either the reset valve or the main valve via the remote. Once you enganged either the reset function or the remote, the pressure will equalize and post will work normally.
The easiest was to release the extra pressure form the inner chamber is by using a 4mm hex key and engage the reset function. Never use the small REVIVE Quick-Reset-Lever to opene the stiffened-up post, as you may break the lever. Use a 4mm L-shaped Allen key instead.
NOTE: It can help to store the bike with not fully extended, but a half-way dropped post.
My REVIVE or my saddle are creaking
First make sure, that it is really the post and not the saddle, that is creaking. Make sure your upper saddle clamp is aligned properly and that your bolts are tightenend evenly with 7Nm. The bolt shafts and threads need to be clear an not touch the saddle clamp and or the post head.
NOTE: The upper clamp can be slightly repositioned during fastening the bolts. You can slide the upper clamp back and forth slightly while tightening. If the upper clamp is positioned too much forward, the bolts can touch the upper clamp or the post head and cause creaking. Hold the upper clamp back with your fingers, while you tighten the bolts evenly.
Especially on frames with slack seattube angles and/or saddles that are pointing nose-downward need can cause contact between bolt and post head/clamp. Proper alignment of the upper clamp can help.
REVIVE, WEIGHTS
125/30.9: 465g
125/31.6: 486g
125/34.9: 530g
160/30.9: 525g
160/31.6: 545g
160/34.9: 590g
185/30.9: 560g
185/31.6: 580g
185/34.9: 630g
Triggy without clamp: 23g
Splits Clamp: 13g
Ti-saddle-clamp-bolts save about 10g compared to regular bolts.
Links to interesting media content about droppers in general: https://www.bikerumor.com/2018/01/24/suspension-tech-how-much-dropper-seatpost-travel-do-you-need/
https://www.bikerumor.com/2018/02/0...termine-what-dropper-post-will-fit-your-bike/
https://www.bikerumor.com/2018/02/0...ntain-your-dropper-seatpost/#comment-32220407 https://www.bikerumor.com/2018/02/14/suspension-tech-how-to-pick-a-dropper-seatpost-remote/
Dropper length comparison (market overview):
Dropper Seatposts
REVIVE test reviews:
Pinkbike review
Vital MTB shootout
NSMB review
Spoke Magazine review
Velomotion shootout
Sicklines long term review - part one
Sicklines long term review - part two
NSMB review
MBR shootout
MTBR review
Singletracks review
OutdoorGearLab - Dropper Shootout
OutDoorGearLab - single review
Vojomag - NL
Vojomag - FR
AMBMAG - AUS
Rotorburn
Additonal helpful information:
REVIVE explosion drawing:
![]()
Before asking question, please check, if you you can find the answer in the first post.
Please note, that you should only work on your post, if you know what you are doing, and if you are an experienced mechanic. Those information may not be exhaustive.
Any work performed by the customer is performed at its own risk.
Alright, here we go.
Let me know, if you want me to add, or if I missed something.
GENERAL MAINTENANCE
Checking air pressure:
1. Place the post right side up and perform a proper reset. The post can remain in the frame.
2. Fully extend the post.
3. After the reset and extension, give it at least one minute of rest to let the oil drain off the reset valve area. Oil can then run down on the ID of the stanchion, away from the air valve and reset valve.
4. Remove saddle clamps and air valve cap
5. Attach air pump and air adapter.
NOTE: Never release air without a pump attached, as releasing too quickly can cause oil to exit the post, which then has to be refilled. Always use the pump´s release mechanism and release slowly !
6. Fill up the post to desired pressure.
Factory setting is 250psi. Less pressure will make the post slower, more pressure will make the post quicker. Don´t got below 200psi or higher than 300psi!
7. Remove the pump and adapter and make sure, not to cause pressure loss from inside the post when doing so. Even a little air loss could mean significant pressure loss, as the air volume inside the post is very small.
8. Reinstall air valve cap and saddle clamps.
NOTE: Only lightly attach pump and/or air adapter. If you tighten the adapter too firmly, the o-rings inside adapter and pump might get squeezed and cause the valve core to stay open for a split second too long. This can result in oil loss and will lead to malfunction. Be very careful when attaching the pump and adapter. Don´t tighten them too much!
Lower tube service
If your lower tube is dirty on the inside, or if the guiding pins and/or bushings are worn, your post should receive a lower tube service, our so called "100hr", service".
Here you can find a video for the lower service:
NOTE:
Do not release the air just for the lower tube service. This is not neccessary and you only risk losing oil. If you anyway want to release air, then please follow the guide above.
Upper bushing usually does not need to be replaced during the first couple lower tube services. It ist much more important to properly clean and re-grease the tubes, and replacing the pins and the small foam ring, if worn.
Recommended greases:
R.S.P. Soft Grease
R.S.P. Slick Kick
Buzzy's Slick Honey
SRAM Butter
KS Post Paste
NOTE:
Do not use WD40, Brunox, Fork Juice or similar (penetrating) oils on your REVIVE or on any other your suspension parts in general. Those products will just wash out your grease over time! Also do not use any other oil inside your lower tube. Proper grease is the way to go.
It is recommended to externally grease your stanchion wiper once in a while. Just apply some grease after wiping it clean and dry. Remove eccessive grease. This will help repell water and keep your rubber soft.
There are not a lot of special tools that you need for taking your post apart, and the most "exotic" ones might be circlip pliers. Those are the ones we use:
for big circlip for lower tube
Knipex 48 41 J21
https://www.knipex.de/index.php?id=1216&L=0&page=art_detail&parentID=1365&groupID=1457&artID=34787
for small circlip for the cartridge/lower bushing
Knipex 49 41 A11
https://www.knipex.de/index.php?id=1216&L=0&page=art_detail&parentID=1365&groupID=1458&artID=34789
TROUBLESHOOTING REVIVE
I had reset my REVIVE, but it still sags play
In rare cases, a lot of air could have gotten inside the hydraulic lockout tube, or the oil started foaming for some reason. In this case, it can require multiple resets to remove all air. Give your post a few seconds between every rest procedure and perform them not too quickly.
My REVIVE sags a bit under heavy load
Every hydraulically locked seatpost - no matter the brand - can be compressed slightly. This is normal. Just a few of the reasons for this behavior can be found below:
- Unlike one may think, oil is not completely incompressible. Oil can be slightly compressed.
- O-rings need space for proper installation and function inside their grooves. This means, o.rings allow minimal movement and this can add up over several o-rings.
- Tubes can change shape under pressure, especially, if thin-walled and under inner pressure. Bloading tubes can have more volume and allow the post to move.
My remote lever does not return properly
This may come from one of the two reasons:
- The bottom actuation assembly ist dirty or not greased.
Your frame inside can collect water or mud over time from washing or riding in muddy conditions. Water can cause corrosion and/or wash away the grease from the bottom actuation unit and/or dirt. Mud can stick to the actuator and cause it to go get stuck.
Cleaning yor post and re-greasing the actuator should help in this case.
You should be advised to remove your post after washing the bike and let the frame dry from the inside, too. You´ll be suprised, how easily sometimes water can accumulate inside a frame
Keeping your frame dry on the inside is not only good for the post, it´ll also prolong the life of your frame bearings and BB. - Pressure is not high enough.
Normal pressure inside the REVIVE is usually between 210-250psi (factory setting = 250 psi) Less pressure means not only, that the post returns slower, but it also, that remote is easier to push. If the pressure is too low, the resulting force on the actuator may not be high enough to push the actuator back to full extension.
Set the pressure back to the factory setting following the air-setup instructions above.
Using a valve key, please also check proper torque for the valve core. After installation, valve cores and seats can settle and require re-tightening.Correct torque for valve cores is 0.3-0.5 Nm.
My post is moving very stickily and/or slowly
Find a few possible reasons below:
- Pressure too low
Set the post bakc to 250psi - Seat clamp/collar is too tight
Check your seat clamp / seat collar for proper torque. If clamps are not tightended properly, or if seattubes are not reamed properly, a seat clamp can squeeze the lower tube and cause binding of the tubes to each other. Check your seattube for proper inner diameter and your collar for proper torque. Torque only enough to allow no movement while riding normally. It is OK for the post to move, when you fall, or if it gets an impact from the side. You may know this advice from your brake levers. In case of crash, it is OK, if parts can move. - Foam ring is clogged
At the bottom of your post, you can spot several small holes. Those holes are important, as the post lower tube needs to „breathe" during extending and lowering. On the inner side those holes are covered by a small foam ring, which allowe air flow, but keeps most dirt and contamination out of the post. If this foam ring is clogged, the air can not enter/exit the lower tube during movement and will slow down the action and might even stop it in the middle of moving. You can easily clean this foam ring, by removing the lower circlip. Siding up the lower tube will giv you acces to the foam ring and you can use a clean tissue to clean it. If it needs to be replaced, you need a REVIVE service kit and perform a "100hr service". - Contaminated lower tube
Dirt inside the lower tube increases friction. Perform a 100hr lower tube service. - Low temperatures
REVIVE is designed to work in low temperatures, even below 0°C. However, please note, that you may need to re-adjust the pressure when riding in the cold. Your post will not have the same pressure, when going from cozy the house onto the cold winter trail. Colder tempertures will slow the post down, as pressure decreases. Set the pressure for the tempereratur you are goinf to use the post in.
NOTE: Don´t forget to re-set the pressure for warmer temperatures!
My remote (or reset function) is extremely hard to enage
This is very likely due to a big temperature difference between using the post and storing the post.
If the post has time to heat up, while it is not being used, the temperature increase will make the oil want to expand. Since the oil is housed in a closed space, the oil can not expand, instead the pressure increases.
Examples:
You ride in sub-zero temps, and store the bike at +20°C in the house.
You ride the bike in summer, then put the bike in your car, where it heats up.
This extra pressure needs to be overcome through either the reset valve or the main valve via the remote. Once you enganged either the reset function or the remote, the pressure will equalize and post will work normally.
The easiest was to release the extra pressure form the inner chamber is by using a 4mm hex key and engage the reset function. Never use the small REVIVE Quick-Reset-Lever to opene the stiffened-up post, as you may break the lever. Use a 4mm L-shaped Allen key instead.
NOTE: It can help to store the bike with not fully extended, but a half-way dropped post.
My REVIVE or my saddle are creaking
First make sure, that it is really the post and not the saddle, that is creaking. Make sure your upper saddle clamp is aligned properly and that your bolts are tightenend evenly with 7Nm. The bolt shafts and threads need to be clear an not touch the saddle clamp and or the post head.
NOTE: The upper clamp can be slightly repositioned during fastening the bolts. You can slide the upper clamp back and forth slightly while tightening. If the upper clamp is positioned too much forward, the bolts can touch the upper clamp or the post head and cause creaking. Hold the upper clamp back with your fingers, while you tighten the bolts evenly.
Especially on frames with slack seattube angles and/or saddles that are pointing nose-downward need can cause contact between bolt and post head/clamp. Proper alignment of the upper clamp can help.
REVIVE, WEIGHTS
125/30.9: 465g
125/31.6: 486g
125/34.9: 530g
160/30.9: 525g
160/31.6: 545g
160/34.9: 590g
185/30.9: 560g
185/31.6: 580g
185/34.9: 630g
Triggy without clamp: 23g
Splits Clamp: 13g
Ti-saddle-clamp-bolts save about 10g compared to regular bolts.
Links to interesting media content about droppers in general: https://www.bikerumor.com/2018/01/24/suspension-tech-how-much-dropper-seatpost-travel-do-you-need/
https://www.bikerumor.com/2018/02/0...termine-what-dropper-post-will-fit-your-bike/
https://www.bikerumor.com/2018/02/0...ntain-your-dropper-seatpost/#comment-32220407 https://www.bikerumor.com/2018/02/14/suspension-tech-how-to-pick-a-dropper-seatpost-remote/
Dropper length comparison (market overview):
Dropper Seatposts
REVIVE test reviews:
Pinkbike review
Vital MTB shootout
NSMB review
Spoke Magazine review
Velomotion shootout
Sicklines long term review - part one
Sicklines long term review - part two
NSMB review
MBR shootout
MTBR review
Singletracks review
OutdoorGearLab - Dropper Shootout
OutDoorGearLab - single review
Vojomag - NL
Vojomag - FR
AMBMAG - AUS
Rotorburn
Additonal helpful information:
- We are currently not planning on dropper posts with more than 185mm drop.
- No, we are currently not planning on droppers posts for 27.2mm seat tube diameter.
- How do I know, if my REVIVE has Microvalve or not?
1. All REVIVE MAX have Microvalve
2. All REVIVE 185 have Microvalve
3. Following serial numbers have Microvalve feature:
1705xxx, 1706xxx, 1707xxx......... and higher
1801xxx, 1802xxx, 1803xxx......... and higher
2705xxx, 2706xxx, 2707xxx......... and higher
2801xxx, 2802xxx, 2803xxx......... and higher
REVIVE explosion drawing:
