Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Titanium Road & Gravel Bike...Wheel/Tire Question

Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Titanium Road & Gravel Bike...Wheel/Tire Question

Old 09-05-20, 12:52 PM
  #1  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
Titanium Road & Gravel Bike...Wheel/Tire Question

I'm in the process of ordering a new Ti framed bike, with versatility as a goal. For a few reasons I've decided to purchase an Alchemy, either the Ronin Ti, or the Chiron (Ti). I'll be doing a lot of asphalt bikepacking (typical load: about 8-10lbs of pack weight), and some gravel riding. I'm not interested in MTB type terrain, as I would use my MTB for that. I've ordered the Ronin Ti with 32 Conti GP5000 tubeless, and was planning on a second 650wheelset, with maybe 45mm tires. The Chiron is described as more of a cyclocross bike, and has a max allowance for 38mm tires.

Aside from any personal experience advice, I'm curious as to what the maximum recommended tire width on a 650c wheel might be for the Chiron. Would it still be 38mm as specified for a 700c setup, or is the restriction based on overall wheel/tire height, and not so much on width, allowing for a bigger tire? (I wasn't able to get a clear answer from Alchemy)

https://alchemybicycles.com/product/ronin-ti/
https://alchemybicycles.com/product/chiron-carbon/

Thanks, Roy
rfield54 is offline  
Old 09-05-20, 01:20 PM
  #2  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
(...give or take, a 47mm x 650b tire has the same outside diameter as a 28mm x 700c wheelset)
rfield54 is offline  
Old 09-05-20, 06:11 PM
  #3  
blakcloud 
Senior Member
 
blakcloud's Avatar
 
Join Date: Aug 2007
Location: Toronto, Ontario
Posts: 2,567

Bikes: Trek Domane SL7, Rivendell Sam Hillborne, Winter Cycles flat bar road bike, Brompton S/M3L (modified)

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 597 Post(s)
Liked 327 Times in 210 Posts
Width will be your worries. The Ronin allows about an 8 mm difference between the two sizes and I would make the assumption that the Chiron will be close to that.

The two biggest differences between those bikes for me was the head tube length and the bottom bracket drop. In my size 54 there is about a 1" difference in length which is huge. Bottom bracket drop is only 4 mm but for people sensitive to this it can be something to consider.

BTW, nice choice for a bike. Keep us updated on which bike you choose and how it is when you purchase it.
blakcloud is offline  
Likes For blakcloud:
Old 09-05-20, 07:18 PM
  #4  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
Thanks blakcloud. So you've ridden both bikes? Do you ride one now?

I'm strongly considering the custom frame geometry option, as Alchemy can come really close to nailing my Retul stats. The difference between the CAD drawing of the custom RoninTi and my two current road bikes, which I thought fit me well (56) is pretty staggering! Which leads me to believe that I've never actually been on a road bike that truly fit me. (my two road bikes are an Alchemy Arion and a '16 Cervelo R5)

Last edited by rfield54; 09-05-20 at 07:23 PM.
rfield54 is offline  
Old 09-06-20, 07:15 AM
  #5  
Toadmeister
Senior Member
 
Join Date: Nov 2019
Location: Iowa
Posts: 584

Bikes: 2021 Salsa Fargo 1x12, 2019 Jamis Renegade Exploit 1x11. Motobacne NX Fat Tire

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 165 Post(s)
Liked 275 Times in 141 Posts
Personal opinion is I’d like the ability to go wider tires beyond 2” fo some gravel, but I’m also a. Clydesdale and not a skinny.

short version- have the capability to go wide as you can on your frame clearance.
Toadmeister is offline  
Old 09-06-20, 04:17 PM
  #6  
veganbikes
Clark W. Griswold
 
Join Date: Mar 2014
Location: ,location, location
Posts: 8,831

Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), Cilo Road Frame, Proteus frame, Ti 26 MTB

Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 2460 Post(s)
Liked 1,490 Times in 996 Posts
Go with whatever frame has the biggest clearance. I would go Ronin personally, it looks like a great bike and one I would get myself if I had all the budget to buy a bunch of ti gravel bikes (I have a big list).
veganbikes is offline  
Likes For veganbikes:
Old 09-06-20, 06:50 PM
  #7  
Elvo
Senior Member
 
Join Date: Oct 2006
Location: Orange County, CA
Posts: 4,682
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 586 Post(s)
Likes: 0
Liked 310 Times in 172 Posts
It really depends but I doubt you would be able to fit more than 650x42 if you can do 700x38
Elvo is offline  
Old 09-06-20, 11:46 PM
  #8  
mstateglfr 
Sunshine
 
mstateglfr's Avatar
 
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 13,179

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Mentioned: 105 Post(s)
Tagged: 0 Thread(s)
Quoted: 6132 Post(s)
Liked 3,285 Times in 1,894 Posts
Firdt off, its completely absurd that the brand cant answer your question. One of the few benefits of a boutique brand is that you get better service. If not, then the price is even less justifiable.

Get the ronin and just use 700c wheels. There is no benefit to a 650x48 if you can fit a 700x45 in there. Its pretty redundant at that point.
mstateglfr is online now  
Old 09-07-20, 07:07 PM
  #9  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
Originally Posted by mstateglfr View Post
Get the ronin and just use 700c wheels
That's what I'll be doing...I'm going in to Alchemy this Friday to have some measurements taken for a custom Ronin Ti, and with that info and my Retul report from a few years ago, I should be a happy camper in the near future.

Last edited by rfield54; 09-07-20 at 07:18 PM.
rfield54 is offline  
Likes For rfield54:
Old 09-07-20, 08:54 PM
  #10  
Mulberry20
Senior Member
 
Join Date: Jun 2016
Posts: 732
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 440 Post(s)
Liked 196 Times in 134 Posts
It still amazes me that people are spending so much money on bikes to take short rides on dirt trails. Something has to give in this bike craze.
Mulberry20 is offline  
Old 09-07-20, 08:59 PM
  #11  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
Originally Posted by Mulberry20 View Post
It still amazes me that people are spending so much money on bikes to take short rides on dirt trails. Something has to give in this bike craze.
This is a blanket statement, full of assumptions. To whom are you referring? WHAT PEOPLE?
rfield54 is offline  
Likes For rfield54:
Old 09-08-20, 07:50 AM
  #12  
mstateglfr 
Sunshine
 
mstateglfr's Avatar
 
Join Date: Aug 2014
Location: Des Moines, IA
Posts: 13,179

Bikes: '18 class built steel roadbike, '19 Fairlight Secan, '88 Schwinn Premis , Black Mountain Cycles Monstercross V4, '89 Novara Trionfo

Mentioned: 105 Post(s)
Tagged: 0 Thread(s)
Quoted: 6132 Post(s)
Liked 3,285 Times in 1,894 Posts
Originally Posted by Mulberry20 View Post
It still amazes me that people are spending so much money on bikes to take short rides on dirt trails. Something has to give in this bike craze.
1- when has distance been mentioned? It hasnt, so you assuming the rides are short. The OP may do 20-70mi rides 5x/week and average 800mi per month. Who knows since none of that is discussed. Its irrelevant, but its really absurd that you assume and then criticize based on the assumption. Its almost as if that is a common logical fallacy...

2- what is a lot of money to one person is less of an issue to another. Criticizing how others spend their money is a popular past time, but that doesnt make it justifiable. Its quite shallow. Everyone has different hobbies and priorities. Buying an expensive bike employs locals, just like any other form of spending money. It isnt everyone else's job to tell someone how to 'best' spend their money. Dont be that person because chances are, you wont like what you hear when criticized. <---that too was an assumption. we all do it.

3- gravel bikes and bikepacking existed well before 'this bike craze'. In fact, it was a common theme for journalists to write about- the idea that this 'new' segment would help popularize cycling and bring in business to failing shops. I dont know why you link riding dirt trails to the bike craze. Mountain biking has been around for decades and bikepacking as well as the gravel bike market are both not new since the craze.

4- I have an $8 can opener. My sister has a $30 can opener, and its also manual. They open cans equally. I shake my head when I use hers because I dont get it, but I accept that its something she finds value in and likes(otherwise she wouldnt have kept it for so many years). I cant imagine criticizing everything that others spend money on which I dont find value in. And I cant imagine being subjected to such a dumb process.


tldr- dont be that person.
mstateglfr is online now  
Likes For mstateglfr:
Old 09-08-20, 08:07 AM
  #13  
Gconan
Senior Member
 
Join Date: Apr 2018
Posts: 654

Bikes: Norco search xr

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 197 Post(s)
Liked 146 Times in 90 Posts
Congratulations on a very fine bike! Good choice between the two as well.
Gconan is offline  
Likes For Gconan:
Old 09-08-20, 08:34 AM
  #14  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
Thanks mstateglfr , and thanks to you as well Gconan
rfield54 is offline  
Old 09-08-20, 09:04 AM
  #15  
blakcloud 
Senior Member
 
blakcloud's Avatar
 
Join Date: Aug 2007
Location: Toronto, Ontario
Posts: 2,567

Bikes: Trek Domane SL7, Rivendell Sam Hillborne, Winter Cycles flat bar road bike, Brompton S/M3L (modified)

Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 597 Post(s)
Liked 327 Times in 210 Posts
Originally Posted by rfield54 View Post
Thanks blakcloud. So you've ridden both bikes? Do you ride one now?

SNIPPED. . .
Sorry if there was a miscommunication on my part, I haven't ridden or even seen the bikes. I was just looking at the geometry numbers and their descriptions when I wrote my reply. I used my size just as a control feature between the two bikes.

Glad to hear you have made a decision on which bike to purchase. I am envious. Keep us updated please.
blakcloud is offline  
Likes For blakcloud:
Old 09-09-20, 02:13 PM
  #16  
sean.hwy
Senior Member
 
sean.hwy's Avatar
 
Join Date: Jan 2020
Location: San Jose
Posts: 444

Bikes: Giant Revolt Advance 2 / SystemSix Carbon Ultegra

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 185 Post(s)
Liked 100 Times in 77 Posts
Originally Posted by mstateglfr View Post


tldr- dont be that person.
this and thank you
sean.hwy is offline  
Old 09-09-20, 09:39 PM
  #17  
veganbikes
Clark W. Griswold
 
Join Date: Mar 2014
Location: ,location, location
Posts: 8,831

Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), Cilo Road Frame, Proteus frame, Ti 26 MTB

Mentioned: 38 Post(s)
Tagged: 0 Thread(s)
Quoted: 2460 Post(s)
Liked 1,490 Times in 996 Posts
Originally Posted by Mulberry20 View Post
It still amazes me that people are spending so much money on bikes to take short rides on dirt trails. Something has to give in this bike craze.
It still amazes me that people on a bike forum are complaining about cool bikes. A Magna, you bet, a rusty Schwinn Collegiate, 100%, a boring open mold plastic bike from China, sure let's do it, but a CUSTOM BUILT TITANIUM BIKE...SERIOUSLY**********???!!!!!!**********?!!!!!!!!!!!

I for one cannot wait to see the bike and I could give two craps how long this person rides on it. It is a neat bike on a forum dedicated to bikes. Isn't the world screwed up enough? Can't we just come together right now and say "that sounds like a cool bike, enjoy it"? Even if you are just a utility cyclist, and a cheap stiff aluminum hybrid with a 3 speed hub and solid tires makes your pantaloons moistened, surely you could at least find some slight positivity in some aspect of a handbuilt bike.
veganbikes is offline  
Likes For veganbikes:
Old 09-10-20, 08:21 AM
  #18  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
I got my first real drop bar multi-speed bike in 1966, my first GOOD bike in 1981, and I now still ride a lot (450 hours, 7,000 miles and 540,000' of elevation gain last year...more this year). So when someone says "spending so much money on bikes to take short rides on dirt trails", I'm inclined to reply "you may go straight to HELL" (with a smile on my face, of course!!)

Last edited by rfield54; 09-10-20 at 08:50 AM.
rfield54 is offline  
Old 09-10-20, 10:55 AM
  #19  
Razorrock
Senior Member
 
Join Date: Oct 2016
Location: Northwest Arkansas
Posts: 105

Bikes: Litespeed

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked 20 Times in 14 Posts
Not sure if you checked out the Litespeed Ultimate Gravel. They have a decent sale going on right now. It shows 45mm on 700c & 2.0 on 650B.

I just got in my Litespeed Cherohala last week that I ordered with Ultegra DI2 and they upgraded to Dura ace shifters and brakes at no extra charge. (national shortage of some parts)
Razorrock is offline  
Old 09-10-20, 11:55 AM
  #20  
rfield54
Member
Thread Starter
 
rfield54's Avatar
 
Join Date: Jun 2008
Location: Colorado
Posts: 45

Bikes: '16 Cervelo R5 .... Alchemy Arion .... Alchemy Ronin Ti ... Santa Cruz 5010CC

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Liked 2 Times in 2 Posts
Originally Posted by Razorrock View Post
Not sure if you checked out the Litespeed Ultimate Gravel
That looks like a nice bike, and that's actually the first one I checked out. It turns out that I'll get a better price - which will include custom geometry and better wheels (IMO) - from Alchemy.
rfield54 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 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.