Anyone have experience with a Trek rear Isospeed?
11-22-20, 01:27 AM
#1
Senior Member
Thread Starter
Anyone have experience with a Trek rear Isospeed?
Have a Trek with the adjustable rear Isospeed Decoupler in the head tube. Have been getting a creaking noise during my last few rides most noticeable when climbing in the saddle.
Went through a bunch of troubleshooting steps associated with the saddle and seat post (removing, re-greasing/carbon pasting, torque specing, etc.) and it doesn't seem to be getting better.
I can re-create the creaking if I hold the bike in place and push down on the saddle. It sounds like the noise is coming from the joint where the head tube meets the seat post.
Wondering if anyone has had this issue? If so, is there a component that might need greasing or some other attention?
Thanks guys!
Went through a bunch of troubleshooting steps associated with the saddle and seat post (removing, re-greasing/carbon pasting, torque specing, etc.) and it doesn't seem to be getting better.
I can re-create the creaking if I hold the bike in place and push down on the saddle. It sounds like the noise is coming from the joint where the head tube meets the seat post.
Wondering if anyone has had this issue? If so, is there a component that might need greasing or some other attention?
Thanks guys!
11-22-20, 11:02 AM
#2
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1954 Post(s)
Liked 2,925 Times
in
1,488 Posts
Head tube? You mean seat tube, right? The head tube is the one at the front, the fork goes through it. I worked for Trek for a while (service mgr at a Trek owned shop) and dealt w/ a bunch of IS issues. Sounds like you might have some corrosion where the bearings press into the frame. I'd remove the cover and have a look for starters.
Likes For cxwrench:
11-22-20, 11:33 AM
#3
Senior Member
When you buy a carbon frame creaking is part of the experience. Seat tubes, bottom brackets, bars and stems etc. it’s part of the charm of owning a carbon frame.
Look at the thread for the Cannondale SuperSix seat tube The fix was to put a business card in there to stop creaking. People actually pay upwards of $5,000 for that privilege.
Embrace it 🤩
Look at the thread for the Cannondale SuperSix seat tube The fix was to put a business card in there to stop creaking. People actually pay upwards of $5,000 for that privilege.
Embrace it 🤩
Last edited by Mulberry20; 11-22-20 at 11:51 AM.
11-22-20, 04:01 PM
#4
Senior Member
Join Date: Oct 2005
Location: Southwestern Ontario
Posts: 4,727
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 1314 Post(s)
Liked 732 Times
in
394 Posts
Originally Posted by Mulberry20
When you buy a carbon frame creaking is part of the experience. Seat tubes, bottom brackets, bars and stems etc. it’s part of the charm of owning a carbon frame.
Look at the thread for the Cannondale SuperSix seat tube The fix was to put a business card in there to stop creaking. People actually pay upwards of $5,000 for that privilege.
Embrace it 🤩
Look at the thread for the Cannondale SuperSix seat tube The fix was to put a business card in there to stop creaking. People actually pay upwards of $5,000 for that privilege.
Embrace it 🤩
My carbon frameset doesn't "creak" -- anywhere. Even has Specialized's Future Shock in the head tube. That doesn't "creak" either. Even has the dreaded 'wedge'-style seat post clamp thingy. That doesn't "creak" either. B/B area? Nope.
Hmmmm. Was I short-changed? Defective frameset? Should I ask for warranty service to rectify this deficiency and install some "creaks"?
Likes For badger1:
11-22-20, 04:03 PM
#5
Senior Member
Join Date: Jul 2009
Posts: 4,239
Bikes: Colnago, Van Dessel, Factor, Cervelo, Ritchey
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 2752 Post(s)
Liked 4,833 Times
in
1,940 Posts
Originally Posted by badger1
Huh. I didn't know that. Now I'm worried.
My carbon frameset doesn't "creak" -- anywhere. Even has Specialized's Future Shock in the head tube. That doesn't "creak" either. Even has the dreaded 'wedge'-style seat post clamp thingy. That doesn't "creak" either. B/B area? Nope.
Hmmmm. Was I short-changed? Defective frameset? Should I ask for warranty service to rectify this deficiency and install some "creaks"?
My carbon frameset doesn't "creak" -- anywhere. Even has Specialized's Future Shock in the head tube. That doesn't "creak" either. Even has the dreaded 'wedge'-style seat post clamp thingy. That doesn't "creak" either. B/B area? Nope.
Hmmmm. Was I short-changed? Defective frameset? Should I ask for warranty service to rectify this deficiency and install some "creaks"?
Likes For tomato coupe:
11-22-20, 05:43 PM
#6
Senior Member
Join Date: Oct 2005
Location: Southwestern Ontario
Posts: 4,727
Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 1314 Post(s)
Liked 732 Times
in
394 Posts
Originally Posted by tomato coupe
Same here – 5 carbon bikes and no creaks. Should we start a class action suit and claim what's rightfully ours?
Likes For badger1:
11-22-20, 07:10 PM
#7
Senior Member
Join Date: Jul 2006
Location: Jacksonville, FL
Posts: 6,066
Bikes: Trek Domane SLR 7 eTap AXS, Trek Emonda ALR 6, Trek FX 5 Sport
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 491 Post(s)
Liked 1,015 Times
in
611 Posts
I never had any issues with creaking on my SuperSix, but I did have some on my Synapse. Not had any issues on my Domane. The only thing I hear is the tires on the road.
__________________
Brian | 2023 Trek Domane SLR 7 eTap AXS | 2016 Trek Emonda ALR 6 | 2022 Trek FX Sport 5
Brian | 2023 Trek Domane SLR 7 eTap AXS | 2016 Trek Emonda ALR 6 | 2022 Trek FX Sport 5
Originally Posted by AEO
you should learn to embrace change, and mock it's failings every step of the way.
11-22-20, 07:18 PM
#8
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1954 Post(s)
Liked 2,925 Times
in
1,488 Posts
Originally Posted by Mulberry20
When you buy a carbon frame creaking is part of the experience. Seat tubes, bottom brackets, bars and stems etc. it’s part of the charm of owning a carbon frame.
Look at the thread for the Cannondale SuperSix seat tube The fix was to put a business card in there to stop creaking. People actually pay upwards of $5,000 for that privilege.
Embrace it 🤩
Look at the thread for the Cannondale SuperSix seat tube The fix was to put a business card in there to stop creaking. People actually pay upwards of $5,000 for that privilege.
Embrace it 🤩
11-24-20, 12:17 PM
#9
Senior Member
Join Date: Sep 2014
Location: Norman, OK
Posts: 814
Bikes: Casati Laser, Colnago Tecnos, Ciöcc Exige, Black Mountain Cycles Road
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 122 Post(s)
Liked 153 Times
in
69 Posts
Originally Posted by cxwrench
What about steel, Ti, and aluminum? Are they all magically silent or are you just butthurt over something that happened with a carbon frame?
My apologies to the OP that the thread is veering off topic. No experience with IsoSpeed here.
11-24-20, 03:44 PM
#10
Senior Member
Join Date: Aug 2007
Posts: 2,583
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 603 Post(s)
Liked 342 Times
in
220 Posts
My non-adjustable rear ISO Speed has a creak but not all the time. It doesn't bug me enough to try and find a solution, maybe in time.
Sorry I don't have a fix for you.
Sorry I don't have a fix for you.
11-24-20, 04:01 PM
#11
-------
Join Date: Jul 2020
Location: Tejas
Posts: 9,070
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 6883 Post(s)
Liked 4,314 Times
in
2,354 Posts
Originally Posted by tomato coupe
Same here – 5 carbon bikes and no creaks. Should we start a class action suit and claim what's rightfully ours?
11-25-20, 07:38 PM
#12
Senior Member
Join Date: Nov 2019
Location: Iowa
Posts: 663
Bikes: 2021 Salsa Fargo 1x12, 2019 Jamis Renegade Exploit 1x11. Motobacne NX Fat Tire
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 192 Post(s)
Liked 319 Times
in
164 Posts
Never had a creak on my Aluminum Domane. That said, I always felt the Isospeed was a bit of a gimmick. I finally gave up on this bike after vibration and road chatter took its toll on my body.
I've since moved on to steel framed gravel bike with a carbon seat post and wider, supple tubeless tires. Not as speedy as a road bike, but a hell lots more fun and cut down that road chatter. I’d rather be comfortable over fast.
I've since moved on to steel framed gravel bike with a carbon seat post and wider, supple tubeless tires. Not as speedy as a road bike, but a hell lots more fun and cut down that road chatter. I’d rather be comfortable over fast.
11-25-20, 07:58 PM
#13
Senior Member
Join Date: Feb 2015
Location: Mission Viejo
Posts: 5,445
Bikes: 1986 Cannondale SR400 (Flat bar commuter), 1988 Cannondale Criterium XTR, 1992 Serotta T-Max, 1995 Trek 970
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 1815 Post(s)
Liked 1,956 Times
in
1,200 Posts
Originally Posted by tsmith41094
I can re-create the creaking if I hold the bike in place and push down on the saddle.
John
