Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Using angle grinder to make clearance from Road->gravel bike

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Using angle grinder to make clearance from Road->gravel bike

Old 10-05-22, 08:03 PM
  #26  
Kai Winters
Senior Member
 
Join Date: Oct 2008
Location: Northern NY...Brownville
Posts: 2,170

Bikes: Specialized Aethos

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 93 Post(s)
Liked 163 Times in 103 Posts
Wow ! Awesome. GCN would call it a "hack"...your bike not only accepts a wider tire but it is also lighter.
Can't wait for your ride reports.





Wish I could be there when the bike collapses and he face plants...entertainment factor easily 10...
Kai Winters is offline  
Likes For Kai Winters:
Old 10-05-22, 08:09 PM
  #27  
yaw
should be more popular
 
Join Date: Feb 2022
Location: Wax Town
Posts: 173

Bikes: 22 Emonda

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 139 Post(s)
Liked 102 Times in 53 Posts
Darwin Awards contestant here for sure.
yaw is offline  
Likes For yaw:
Old 10-05-22, 08:21 PM
  #28  
spelger
Senior Member
 
spelger's Avatar
 
Join Date: Jul 2015
Location: reno, nv
Posts: 1,754

Bikes: yes, i have one

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 858 Post(s)
Liked 911 Times in 526 Posts
Seriously, what could possibly go wrong?
spelger is offline  
Likes For spelger:
Old 10-05-22, 09:43 PM
  #29  
rsbob 
😵‍💫
 
rsbob's Avatar
 
Join Date: Sep 2020
Location: Seattle-ish
Posts: 3,745
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1452 Post(s)
Liked 2,687 Times in 1,545 Posts
__________________
Road and Mountain 🚴🏾‍♂️



rsbob is offline  
Likes For rsbob:
Old 10-05-22, 09:55 PM
  #30  
Dean V
Senior Member
 
Join Date: Oct 2009
Posts: 2,853
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 1067 Post(s)
Likes: 0
Liked 257 Times in 153 Posts
Crushing the inside of the chain stay a bit and using a different fork would of been a better way of doing it.Bit late now though.
Dean V is offline  
Old 10-05-22, 09:58 PM
  #31  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 6,558
Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 5966 Post(s)
Liked 9,027 Times in 3,906 Posts
This post makes me feel a lot smarter. Thank you.
Koyote is offline  
Old 10-05-22, 10:59 PM
  #32  
CliffordK
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 27,273
Mentioned: 216 Post(s)
Tagged: 0 Thread(s)
Quoted: 17009 Post(s)
Liked 3,853 Times in 2,856 Posts
The solution is to dimple the chainstays (before grinding them away).

Extremely casual DIY chainstay dimpling -- Hey, it works!

This is generally done on steel that reacts fairly well to cold forming.

People don't like cold forming aluminum. Your Tirreno Razza 2.0 lists 7005 aluminum which should be fairly stiff, and probably not great for cold forming.

You are best either using tires that fit your frame, or tracking down a frame that fit your needs.

You may be able to find a good Tricross for not too much. Or hunt for older hybrids that have lots of clearance.
CliffordK is offline  
Likes For CliffordK:
Old 10-06-22, 05:59 AM
  #33  
noimagination
Senior Member
 
Join Date: Oct 2016
Posts: 585
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 307 Post(s)
Liked 344 Times in 200 Posts
The scariest thing about this post is that people like the OP can vote. And reproduce.
noimagination is offline  
Likes For noimagination:
Old 10-06-22, 06:11 AM
  #34  
indyfabz
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 36,008
Mentioned: 204 Post(s)
Tagged: 1 Thread(s)
Quoted: 16565 Post(s)
Liked 11,494 Times in 5,548 Posts
Originally Posted by Koyote View Post
This post makes me feel a lot smarter. Thank you.
Sort of like when I watch "Cops!" As bad as I sometimes think my life is, "Cops!" reminds me that life could be a whole lot worse.
indyfabz is offline  
Likes For indyfabz:
Old 10-06-22, 06:22 AM
  #35  
Reflector Guy
Senior Member
 
Reflector Guy's Avatar
 
Join Date: Jul 2020
Location: Chicago
Posts: 1,243

Bikes: Bianchi Infinito XE, Via Nirone 7, GT Aggressor Pro

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 569 Post(s)
Liked 1,170 Times in 541 Posts
Big Gravel works in mysterious ways.
Reflector Guy is offline  
Likes For Reflector Guy:
Old 10-06-22, 06:47 AM
  #36  
seypat
Senior Member
 
Join Date: Oct 2010
Posts: 7,903
Mentioned: 67 Post(s)
Tagged: 0 Thread(s)
Quoted: 2751 Post(s)
Liked 1,923 Times in 1,201 Posts
What's up with the bottom part of the headset?
seypat is offline  
Likes For seypat:
Old 10-06-22, 07:39 AM
  #37  
eduskator
Senior Member
 
eduskator's Avatar
 
Join Date: Aug 2019
Location: Québec, Canada
Posts: 1,372

Bikes: TCR Pro, Revolt Adv

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 586 Post(s)
Liked 333 Times in 256 Posts
My eyes are bleeding
eduskator is offline  
Old 10-06-22, 08:41 AM
  #38  
easyupbug 
Senior Member
 
Join Date: Jan 2013
Posts: 2,340

Bikes: too many sparkly Italians, some sweet Americans and a couple interesting Japanese

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 468 Post(s)
Liked 417 Times in 306 Posts
Originally Posted by Chuck M View Post
If this is for real, my only suggestion to the OP is next time you have an idea, post it here before you do it rather than after.
Exactly, please do as Chuck M asks. Coming from heavy industry I know that people are willing to take risks primarily for two reasons: it is human nature to try and be efficient and they don't perceive the risk in the consequences of their actions. Bike Forums can help with that.
easyupbug is offline  
Old 10-06-22, 08:58 AM
  #39  
Iride01 
more daylight today!
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 12,221

Bikes: Tarmac Disc Comp Di2 - 2020

Mentioned: 43 Post(s)
Tagged: 0 Thread(s)
Quoted: 5007 Post(s)
Liked 3,513 Times in 2,438 Posts
Seems to me it'd be better to buy a bike that will allow for the size tires you want.

Or did you get this attitude of making things comply to your wishes as some rebellion to others making you behave in ways you didn't wish?
Iride01 is offline  
Likes For Iride01:
Old 10-06-22, 09:07 AM
  #40  
_ForceD_
Sr Member on Sr bikes
 
_ForceD_'s Avatar
 
Join Date: Jul 2015
Location: Rhode Island (sometimes in SE Florida)
Posts: 1,994

Bikes: Several...from old junk to new all-carbon.

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 867 Post(s)
Liked 594 Times in 318 Posts
Even though this is apparently real…I find it just a little too dumb to comment on (aside from this post).

Dan
_ForceD_ is offline  
Old 10-06-22, 09:12 AM
  #41  
BTinNYC
...
 
Join Date: Oct 2021
Location: Whitestone and Rensselaerville, New York
Posts: 731

Bikes: Bicycles? Yup.

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 213 Post(s)
Liked 655 Times in 331 Posts
Next time, use a Sawzall.
BTinNYC is offline  
Old 10-06-22, 10:53 AM
  #42  
Maelochs
Senior Member
 
Maelochs's Avatar
 
Join Date: Oct 2015
Posts: 13,996

Bikes: 2015 Workswell 066, 2017 Workswell 093, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE

Mentioned: 143 Post(s)
Tagged: 0 Thread(s)
Quoted: 6820 Post(s)
Liked 2,130 Times in 1,154 Posts
You know you can drop a lot of weight and thereby increase performance if you drill 1-inch diameter holes in the down tube? All the pros used to do that ......
Maelochs is offline  
Old 10-06-22, 10:59 AM
  #43  
jonathanf2
Senior Member
 
Join Date: Dec 2020
Location: Los Angeles
Posts: 598
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 303 Post(s)
Liked 561 Times in 267 Posts
If you're in the US, Poseidon sells the fixed/single speed Tracklocross frameset for $200 with 40c tire clearance. $200 is a drop in the bucket compared to potential medical bills from riding a structurally unsafe bike frame.
jonathanf2 is offline  
Likes For jonathanf2:
Old 10-06-22, 11:33 AM
  #44  
Koyote
Senior Member
 
Join Date: Sep 2017
Posts: 6,558
Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 5966 Post(s)
Liked 9,027 Times in 3,906 Posts
Originally Posted by Maelochs View Post
You know you can drop a lot of weight and thereby increase performance if you drill 1-inch diameter holes in the down tube? All the pros used to do that ......

Why stop there? I'm drilling holes in my spokes. Planning to use a 1/4" drill bit for maximum weight savings.
Koyote is offline  
Likes For Koyote:
Old 10-06-22, 11:44 AM
  #45  
datlas 
Should Be More Popular
 
datlas's Avatar
 
Join Date: Dec 2007
Location: Malvern, PA (20 miles West of Philly)
Posts: 39,913

Bikes: 1986 Alpine (steel road bike), 2009 Ti Habenero, 2013 Specialized Roubaix

Mentioned: 539 Post(s)
Tagged: 2 Thread(s)
Quoted: 19579 Post(s)
Liked 6,238 Times in 3,020 Posts
This one has "Thread of the Month" potential. But the month is young, so stay tuned.
__________________
Originally Posted by rjones28 View Post
Addiction is all about class.
datlas is offline  
Old 10-06-22, 02:33 PM
  #46  
superdex
staring at the mountains
 
superdex's Avatar
 
Join Date: Mar 2005
Location: Castle Pines, CO
Posts: 4,532

Bikes: Obed GVR, Fairdale Goodship, Salsa Timberjack 29

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 381 Post(s)
Liked 185 Times in 104 Posts
Actually, I want to see the OP retrofit disc brakes on there next. Let's see it!

(and what the F happened to your headset? It's totally jacked)
superdex is offline  
Old 10-06-22, 02:45 PM
  #47  
Troul 
:D
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 6,036

Bikes: RSO E-tire dropper fixie brifter

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 2,114 Times in 1,421 Posts
totally could see someone doing that to a carbon road bicycle next...
__________________
-Oh Hey!
Troul is offline  
Old 10-06-22, 02:49 PM
  #48  
SimicRecluse
Newbie
Thread Starter
 
SimicRecluse's Avatar
 
Join Date: Feb 2015
Posts: 17

Bikes: SS converted Razza 2.0, 800cc Suzuki boulevard

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 3 Times in 3 Posts
Damn, some of yall are kinda mean.
A few points:
1. Im not that dumb. The areas where material was removed mostly affect the horizontal force on the bike, not the vertical where most of the load is. I also attempted to to force it by hand, and both the forks and chainstays are still fairly strong, though the connection between the carbon and aluminum part of the fork only worries me a little.
2. I bet I could drill/grind a lot of material off this bike if I wanted to and still have it be fine to ride, but weight isn't super important to me - a non-racer.
3. I put this bike together piecemeal, through craigslist / stuff I found on the side of the road / some amazon parts. The frame was $40. I think I did pretty good finding a boyd wheelset though.

Originally Posted by seypat View Post
What's up with the bottom part of the headset?
Its missing the piece that seals the bottom of the headset, so electric tape is used as a weather barrier. It works fine.

Originally Posted by Iride01 View Post
Or did you get this attitude of making things comply to your wishes as some rebellion to others making you behave in ways you didn't wish?
Isn't this basically all rebellion? I do what I want
SimicRecluse is offline  
Old 10-06-22, 02:58 PM
  #49  
seypat
Senior Member
 
Join Date: Oct 2010
Posts: 7,903
Mentioned: 67 Post(s)
Tagged: 0 Thread(s)
Quoted: 2751 Post(s)
Liked 1,923 Times in 1,201 Posts
seypat is offline  
Likes For seypat:
Old 10-06-22, 03:14 PM
  #50  
SimicRecluse
Newbie
Thread Starter
 
SimicRecluse's Avatar
 
Join Date: Feb 2015
Posts: 17

Bikes: SS converted Razza 2.0, 800cc Suzuki boulevard

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked 3 Times in 3 Posts
seypat LOL. Guess which bike thieves are gonna take on the rack? Cause its definitely gonna be the cervelo not mine. Anyone who wants to come laugh at me can do so at el tour de tuscon - as I leave you in the dust. I might be in a Wilee cosplay
SimicRecluse is offline  

Thread Tools
Search this Thread

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

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.