Notices
Track Cycling: Velodrome Racing and Training Area Looking to enter into the realm of track racing? Want to share your experiences and tactics for riding on a velodrome? The Track Cycling forums is for you! Come in and discuss training/racing, equipment, and current track cycling events.

Stem choice nightmare on the market

Old 01-16-20, 03:48 PM
  #1  
bartek. 
Senior Member
Thread Starter
 
Join Date: Jul 2017
Posts: 120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 63 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Stem choice nightmare on the market

I thought there is no easier to pick up component than stem. I was wrong.
I am in need of 110 mm both -6 and -10 degrees. Requirements: stiff and alloy

Zipp Service Course SL is my choice of -6 deg stems. This time the faceplate is too wide for the 3T Scatto! Not much other choices these days such as 3T ARX II is 1 bolt steerer tube when APTO has problems with correct torquing and I would be scare to ride it on track. FSA or Ritchey might be an option but never seen on track maybe there is a reason.
For -10 degrees there is a PRO Vibe which is stiff but comes with non-standard body shape that requires its own top cap (I need more steerer) or special PRO thin spacer that looks super ugly in connection with wider one on the top.

I can't believe this is all my choices in 2020. What am I missing?
In fact I may need to find used 3T ARX (2 bolts for steerer) for -6 and go with the PRO with special spacer that will be frustrating to forget to take it with me on the velodrome ;-)
bartek. is offline  
Old 01-16-20, 06:09 PM
  #2  
'02 nrs
royaloaker
 
'02 nrs's Avatar
 
Join Date: Jan 2010
Location: se MIch.
Posts: 201

Bikes: 1938 claud butler,1983 Basso,teledyne titan,teocali super,nrs,1993 stumpjumper fsr,Paramountain,Paramount Buell,4 banger,Zaskar LE,Colnago Master Ibex MTB,1987ish,.etc....

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 71 Post(s)
Liked 63 Times in 35 Posts
tried a google search?
'02 nrs is offline  
Old 01-16-20, 06:29 PM
  #3  
brawlo
Senior Member
 
brawlo's Avatar
 
Join Date: Apr 2011
Location: Australia
Posts: 1,063
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 239 Post(s)
Liked 16 Times in 14 Posts
Thomson do 10
brawlo is offline  
Likes For brawlo:
Old 01-16-20, 07:35 PM
  #4  
carleton
Elitist
 
carleton's Avatar
 
Join Date: Jul 2005
Location: Atlanta, GA
Posts: 15,809
Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 1312 Post(s)
Liked 36 Times in 31 Posts
Amen to Thomson.

Thomson X4 4-bolt 0 or 10 MTB stem is the way to go. I'd shy away from the X2 road stem. It uses 2 bolts to fasten. Fine for most people, but if you have a strong standing start, you might break it. I did mine. I got a new faceplate no questions asked from Thomson at no charge.

The X4 will also work with Nitto 25.4 bars if you use a 25.4 to 31.8 shim spacer. I've done this with great success. Very fiddly to get installed, but solid as a rock after.

Here is one of my builds using Thomson. I used Thomson on very bike that would accept it. The only bikes that wouldn't were the Felt TK1/FRD and the LOOK. I liked the Thomson so much, I contemplated installing a standard fork just so I could use a Thomson.




Oh, and as you can see, their seatposts were tops as well.

I used their seatpost collars to make this: The unslippable seapost on the frame I designed. I asked for an extended seat tube where the seatpost collar sits. This way, I could affix double Thomson seatpost collars. Never budged 1mm.





Thomson stems and seatposts on both bikes.

About Thomson: They are an aerospace engineering company...that makes bike bits on the side for fun: https://www.lhthomson.com/our-company/history/

That's why the quality is so high.

Last edited by carleton; 01-16-20 at 07:47 PM.
carleton is offline  
Old 01-16-20, 07:54 PM
  #5  
carleton
Elitist
 
carleton's Avatar
 
Join Date: Jul 2005
Location: Atlanta, GA
Posts: 15,809
Mentioned: 88 Post(s)
Tagged: 0 Thread(s)
Quoted: 1312 Post(s)
Liked 36 Times in 31 Posts
Thomson is one reason why I advocate so hard for high-end frames to be designed to take round seatposts. I have never had a Thomson seatpost tilt or slip on me.

Same for accepting standard stems. Their X4 stem was used by the AUS and GB teams by the sprinters. It's unmatched for strength. My only gripe is that it comes on only 0 and 10 degrees.

Perkins in the London Olympics riding a Thomson X4:
carleton is offline  
Old 01-16-20, 08:27 PM
  #6  
McBTC
Senior Member
 
McBTC's Avatar
 
Join Date: May 2015
Posts: 3,780

Bikes: 2015 22 Speed

Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 1503 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
FSA, Opera, Richie, Easton...
McBTC is offline  
Old 01-17-20, 07:32 AM
  #7  
topflightpro
Senior Member
 
topflightpro's Avatar
 
Join Date: Jul 2007
Posts: 6,688
Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 1436 Post(s)
Liked 156 Times in 106 Posts
Second the X4. In the Fairwheel Stem test, it was bested only by the Pro Sprint stems. The older 3T with the four faceplate bolts also tested well.

From my perspective, the older Easton EA90 (with the full faceplate) also seems pretty stiff and is a solid design - bolt the top two face place bolts all the way then torque just the bottom two. I believe it comes in a 6 or 10. It looks like they redesigned it though, so not sure how stiff the new version is.
topflightpro is offline  
Old 01-17-20, 11:13 AM
  #8  
DMC707
Senior Member
 
DMC707's Avatar
 
Join Date: Jan 2013
Location: Oklahoma City
Posts: 3,648

Bikes: Too many to list

Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 809 Post(s)
Liked 118 Times in 76 Posts
This 3T is a 4 bolt face and is narrow enough

but agree on the Thomson stuff -- anything they make is first rate -- using Thomson for my seatpost nub (just a regular cutdown road post inserted in the seat mast ) -- it doesn't slip

And the reason for the extended seat mast is for the exact reason @carleton stated -- slipping seatposts suck --- and if mine does , it will only slip an inch or so and I can ride through that

Sadly -- had a moment of "adulthood" and the car is long gone now






DMC707 is offline  
Likes For DMC707:
Old 01-18-20, 08:39 AM
  #9  
pah
Junior Member
 
Join Date: Dec 2019
Location: Dexter, MI
Posts: 14

Bikes: 84 Colnago Super, early 70's cinelli supercorsa pista, Cyclops Pista, specialized team stumpjumper, Klein Quantum II

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 1 Time in 1 Post
Love the matching paint job!
pah is offline  
Likes For pah:
Old 01-18-20, 10:00 PM
  #10  
Super D
Senior Member
 
Super D's Avatar
 
Join Date: Apr 2014
Location: San Diego
Posts: 217

Bikes: C'dale Road, Giant TT, DF Track, DB MTB

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 65 Post(s)
Liked 5 Times in 5 Posts
I've got a friend running a 150mm KNCN Arrow stem, seems to be holding up well. Anyone try one over a long period of time? Stiff, durable, or doo-doo?
Super D is offline  
Old 01-19-20, 12:24 PM
  #11  
pi03k
Junior Member
 
Join Date: Nov 2015
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked 1 Time in 1 Post
Originally Posted by Super D View Post
I've got a friend running a 150mm KNCN Arrow stem, seems to be holding up well. Anyone try one over a long period of time? Stiff, durable, or doo-doo?
I've got 130mm kcnc arrow. I don't like it because it needs 3mm allen key. It's easy to round the screw head.
Regarding stiffness I prefer full one piece plate like Pro Sprint, Thompson.
pi03k is offline  
Old 01-20-20, 10:21 AM
  #12  
bartek. 
Senior Member
Thread Starter
 
Join Date: Jul 2017
Posts: 120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 63 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks for the interest!
I totally forgot about Thomson! This is a great option. I may consider X4 over X2 due to safety concerns. However, my use in this case would be an opposite to the massive sprints described above. I need the -10 degrees stem for mass starts in use with 3T SuperErgo Ltd carbon handlebar. I haven't ridden this handlebars on track yet but they doesn't feel that tough as Scatto's or other classic track bars. So, I'm a bit concerned if this stem wouldn't be too massive for this handlebars. I also know at least 3-4 people which faceplates cracked riding on the street (I don't know any other with similar experience with other stems). I'm still considering this stem as it's super beautiful but just sharing my concerns. I have never used it myself.

As of this, I think more about an old version of the Pro Vibe 7s that stiffness is somewhere between X2 and X4 (based on only stem stiffness test available) with almost 31g weight reduction compared to the X4.
Another option is the old Easton EA90 which looks nice but not much data, not even on materials used.

Is my thinking correct?

Originally Posted by McBTC View Post
FSA, Opera, Richie, Easton...
FSA and Richey do some 6 degrees. I don't like FSA due to the proprietary top cap, same as the new PRO Vibe.
Easton discontinued 10 degrees and now makes only 0/7 options. However, I agree the old EA90 with full faceplate looks promising!
Opera? I don't know this brand. Google directs to Aliexpress which is not a good sign.
bartek. is offline  
Old 01-20-20, 02:28 PM
  #13  
topflightpro
Senior Member
 
topflightpro's Avatar
 
Join Date: Jul 2007
Posts: 6,688
Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 1436 Post(s)
Liked 156 Times in 106 Posts
Here is the stem test I referenced.

Stem Review - Fairwheel Bikes Blog
topflightpro is offline  
Old 01-21-20, 04:19 PM
  #14  
taras0000
Senior Member
 
taras0000's Avatar
 
Join Date: Dec 2004
Location: 43.2330941,-79.8022037,17
Posts: 1,706
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 318 Post(s)
Liked 15 Times in 14 Posts
Opera is a Pinarello brand.
taras0000 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.