Notices
Cyclocross and Gravelbiking (Recreational) This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

Niner MCR

Old 11-05-19, 10:12 PM
  #26  
HTupolev
Senior Member
 
Join Date: Apr 2015
Location: Seattle
Posts: 2,981
Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 1323 Post(s)
Liked 129 Times in 85 Posts
Originally Posted by Metieval View Post
crazy they never distinguish the difference between Resins and plastic in that article.

https://diffzi.com/resin-vs-plastic/

which means that when you mix Carbon and Resin..... It isn't exactly carbon and plastic.


Probably why drive shafts are carbon fiber, and Bumpers are ABS plastic etc.....
If we want to be precise, words like "resin" and "plastic" have a lot of different meanings depending on the context and level of specificity. The page you're referencing has a lot of inconsistencies and draws from a lot of sources that aren't all on the same page as each other.
The resins used in bicycle frame construction are generally synthetic polymer resins, not some stuff scraped off a tree.

The reason that a thermoplastic bumper isn't referred to as "carbon fiber" is because it's usually a purely plastic molding with no carbon fiber in it. If a plastic bumper was laid up with sheets of carbon fiber reinforcing the structure, people would call it "carbon fiber", but there would still be plastic bonding the carbon sheets.

I'm not saying that it makes sense to use "it's plastic" as a broad insult to carbon frames. But plastic does not have "nothing" to do with carbon frames.
HTupolev is offline  
Old 11-05-19, 10:31 PM
  #27  
Metieval
Senior Member
 
Metieval's Avatar
 
Join Date: Jul 2005
Location: Ohio
Posts: 2,332

Bikes: Road bike, Hybrid, Gravel, Drop bar SS, hard tail MTB

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 943 Post(s)
Liked 86 Times in 73 Posts
Originally Posted by HTupolev View Post
The reason that a thermoplastic bumper isn't referred to as "carbon fiber" is because it's usually a purely plastic molding with no carbon fiber in it. If a plastic bumper was laid up with sheets of carbon fiber reinforcing the structure, people would call it "carbon fiber", but there would still be plastic bonding the carbon sheets.



Whoosh! you missed the practicality side of the differences!
Metieval is offline  
Old 11-05-19, 10:39 PM
  #28  
HTupolev
Senior Member
 
Join Date: Apr 2015
Location: Seattle
Posts: 2,981
Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 1323 Post(s)
Liked 129 Times in 85 Posts
Originally Posted by Metieval View Post
Whoosh! you missed the practicality side of the differences!
I'm fully aware of why driveshafts are more likely to be made from a high-strength composite than bumpers. I was not entirely sure of the point you were making with that particular sentence, so I was just covering the base by clarifying terms.
HTupolev is offline  
Old 11-06-19, 04:23 AM
  #29  
thehammerdog
Senior Member
 
thehammerdog's Avatar
 
Join Date: Dec 2007
Location: NWNJ
Posts: 2,774

Bikes: Road bike is a Carbon Bianchi C2C & Grandis (1980's), Gary Fisher Mt Bike, Trek Tandem & Mongoose SS MTB circa 1992.

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 263 Post(s)
Liked 30 Times in 24 Posts
Originally Posted by gus6464 View Post
So it's finally out and Jenson has it in stock. Who's biting the bullet?

https://www.jensonusa.com/Niner-MCR-...r-1x-Bike-2020

Full GRX800 and the dropper post is properly installed with the left GRX shifter.

The bike is just uber cool and i guess better than what most here have. If i had the $$$ i would buy one. Reviews suggest being FS makes one a better rider...thus each and every other mode of transportation has.....wait for it......suspension.
🤡
thehammerdog is offline  
Old 11-06-19, 06:14 AM
  #30  
GrainBrain
Senior Member
 
GrainBrain's Avatar
 
Join Date: Aug 2017
Location: Central Io-way
Posts: 1,350

Bikes: LeMond Zurich, Giant Talon 29er

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 703 Post(s)
Liked 64 Times in 47 Posts
A drool worthy machine for sure! Niner lists a $4700 build with grx400 2x so I think that's very competitive for what this is. I will be anxious to see if/when someone races this.

I've said before I'd love this machine because of the full suspension and the effort to reduce "low amplitude high frequency vibrations". There's lots of grass paths that I've ridden in my hardtail mtb with 55c tires and low pressure that-are-punishing!! Frost heaved untrodden surfaces and washboard are tough to handle for long durations on a rigid setup.
GrainBrain 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

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