Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11
  1. #1
    Drink my Koolaid MadProphet's Avatar
    Join Date
    Nov 2012
    Location
    95969
    My Bikes
    2013 Trek DS 8.3 (sold) '13 Trek Domane 2.0
    Posts
    108
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    A longish tire question

    I bought a Trek 8.3 DS and do love it. I'm putting about 5-9 miles, every two days on it.

    If you've read my previous posts about me, skip this whole paragraph: I'm 51, recently went from 365 to 225lbs and haven't ridden since gas was .55 a gallon and all the cool cars had CB's. I need to add activity to my life and even though I have a completely destroyed back (multiple surgeries) and lots of nerve problems in my legs, I'm going to ride.

    Further (about where I live), I live in a VERY hilly environment on the ridge of the foothills leading to the Sierra Nevada mountains. I live at 1825', while my town goes from 1100 to nearly 2500' - in about six miles. There is a central bike trail (from train to trail conversion) running through the center of town (basically, up and down). I started at about 2.4 miles last month and have built up to around 5-9 miles, with 400-600' elevation gains. The trail is paved, but we have extreme weather conditions and that means the trail (and the town) get the crap kicked out of it. We just endured 42" of rain in seven days. Our yearly average is 59".

    So, I got the LR2 tires with the bike - 700cx38. They are 60psi tires. While they are a LOT easier to ride than the MTB tires, I'd still like to have a tire with a bit less rolling resistance. I would like something with more puncture protection, as well. I had Schwable Big Apples on my 'bent trike, and I liked the brand. Though obviously not considering BA's!

    Once I start looking, there are just tons of choices. I was thinking something like the Marathon Plus or GG's in same size. I'm wondering if others have used these on hybrids and what their experiences were.

    On a separate note, I'm also wondering about tubeless. I keep seeing 'kits' to do this and they are over $200! Should I go with a kit or just get dedicated wheel/tire combinations that are tubeless designated?

    What I'm trying to achieve is less rolling resistance, good traction on pine needles and leaves and puncture resistance. I'd also love to keep some ability to use a dirt trail if the opportunity presents itself.

    Or am I looking for the impossible?
    Trek DS 8.3 -> Trek Domane 2.0 + (CrossRip Ltd or Crockett 5 Disc)
    www.ascendingparadise.com

  2. #2
    Senior Member Bill Kapaun's Avatar
    Join Date
    Feb 2007
    Location
    Mid Willamette Valley, Orygun
    My Bikes
    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
    Posts
    6,788
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    There are trade offs.
    Hard packed dirt and a very minimal tread will suffice. A bit looser dirt or pine needles/leaves and you're in a totally different ball game.

  3. #3
    Senior Member
    Join Date
    Jun 2008
    Location
    Maryland
    My Bikes
    Hollands Touring Bike, Schwinn mountain bike, folding bike, tandem and triple
    Posts
    545
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    For pavement I like Vittoria Randonneur Hyper. I use 700x38c but they come in 700x32 & 35c as well. Low drag, highly puncture resistant and fast.

  4. #4
    Have bike, will travel Barrettscv's Avatar
    Join Date
    Feb 2006
    Location
    Windy City
    My Bikes
    A road bike for every purpose
    Posts
    8,812
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ClemY View Post
    For pavement I like Vittoria Randonneur Hyper. I use 700x38c but they come in 700x32 & 35c as well. Low drag, highly puncture resistant and fast.
    +1

    I have the Vittoria Hyper in both the 700x38 and the 700x32 size. The 700x32 measure out to 34mm wide on a 23mm wide rim. It is a good size for most of my riding. The tire is very stable with great traction on pavement and gravel. Wet gravel causes no issues, but wet mud and wet silty soil can be a problem. I just ride carefully on off-camber turns if the ground is wet.

    The tire is light but tough. It will make climbing easier without a doubt.

    Another issue to consider is the front suspension fork on your Trek. You might notice some travel (the fork going up and down) as you pedal. The fork is reducing the power going to the rear wheel when that happens.

    Be sure to use the lock-out feature on your fork when climbing. This will make the climb easier.
    Last edited by Barrettscv; 12-05-12 at 08:54 AM.
    2014 Trek DS.1: "Viaggiatore" A do-it-all bike that is waiting in Italy
    2012 Pedal Force CG2: "Secolo Bicicletta" the modern carbon fiber road bike
    2012 Pedal Force CX2: "Carbone CX" the carbon fiber CX bike
    2010 Origin 8 CX 700: "Servizio Grave" Monstercross/29er bike
    1997 Simoncini Special Cyclocross: "Little Simon" lugged Columbus steel CX bike
    1987 Serotta Nova Special X: "Azzurri" The retro Columbus SPX steel road bike

  5. #5
    S'Cruzer pierce's Avatar
    Join Date
    Jun 2010
    Location
    122W 37N
    My Bikes
    too many
    Posts
    2,285
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I was down at the LBS and they had a pair of the Randonneur Hyper x38's on the shelf, which I noted were labeled 40-622 even tho they also said 700x38. this usually means the tire runs slightly oversize. I decided to go ahead and order the x35 size, and will report in when they get here and when I get them mounted.

  6. #6
    Senior Member
    Join Date
    Apr 2011
    Posts
    1,119
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Big Apples wouldn't be bad really. Even though they are bigger and heavier, they don't necessarily have more rolling resistance and they may have less due to the tread pattern compared to your current tires. Maybe something like the Schwalbe Sillento or one of the Marathon tires would work for you.

    It is important to note the distinction between rolling resistance and inertia. Rolling resistance is friction or drag resisting the rolling motion. Inertia is the resistance to change in state of motion. An object at rest wants to stay at rest and moving (or rotating) object wants to keep moving. When accelerating, bigger and heavier tires feel harder to roll because they are more difficult to accelerate, but this is due to inertia, not rolling resistance. Once up to speed, the power to keep the bike going is significantly less than that of accelerating it. The rolling tire wants to keep rolling if you keep the speed about the same.

    Don't be too tempted to go narrower. A narrower tire doesn't necessarily have less rolling resistance and may in fact have more because the tire deforms more and becomes less round than a wider tire. This is assuming you are comparing similar tires. Assuming the same pressure, the wider tire deforms more in the width and less in the circumference so it stays more round than a narrower tire. I remember one guy here keeps swearing up and down that narrower tires have lower rolling resistance, but then I found out he was comparing knobby CX 38 or 25 to smooth 28 for street...It's only once you're up to about 20MPH where narrower tires start to become beneficial because aerodynamic drag becomes a bigger issue. On a Trek DS though, this isn't a huge concern because the upright riding position compared to road bikes will be a much bigger factor than the tire.
    Last edited by jsdavis; 12-08-12 at 12:03 AM.

  7. #7
    Certified Bike Brat Burton's Avatar
    Join Date
    Jan 2011
    Location
    Montreal, Quebec
    Posts
    4,203
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Bill Kapaun View Post
    There are trade offs.
    Hard packed dirt and a very minimal tread will suffice. A bit looser dirt or pine needles/leaves and you're in a totally different ball game.
    This

    And tire performance with minimal tread just gets worse offroad in wet conditions. If you really have to deal with both paved sunny roads and wet offroad trails seriously suggest you consider two sets of wheels and different tires on each so you can pick and choose.

  8. #8
    S'Cruzer pierce's Avatar
    Join Date
    Jun 2010
    Location
    122W 37N
    My Bikes
    too many
    Posts
    2,285
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jsdavis View Post
    Don't be too tempted to go narrower. A narrower tire doesn't necessarily have less rolling resistance and may in fact have more because the tire deforms more and becomes less round than a wider tire. This is assuming you are comparing similar tires. Assuming the same pressure, the wider tire deforms more in the width and less in the circumference so it stays more round than a narrower tire..

    except narrower tires inherently use higher pressures. a 25c tire probably has 110-120psi in it, while a 35c hybrid tire is more like 60-80psi. if the same weight rider put 60psi in that 25c, they'd pinch flat the first time they hit a crack in the pavement.

  9. #9
    Drink my Koolaid MadProphet's Avatar
    Join Date
    Nov 2012
    Location
    95969
    My Bikes
    2013 Trek DS 8.3 (sold) '13 Trek Domane 2.0
    Posts
    108
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Since I'm keeping the LT2's at 60 - which is what they are rated for - and they seem to flatten out more than a bit under my load, should I be considering a higher pressure tire? Should they 'flatten out' under my 225lbs?

    I keep seeing that people consider tires to be a good upgrade. I changed my bars to the Iso-zone model and those helped a bit in the hand numb category. I changed out my pedals for Wellgo B-67's and I like the extra room they give. I added a Selle saddle and finally can make it 6-7 miles before pain sets in. I'm just thinking that new tires - especially ones with a little higher pressure, would add that reduction in rolling resistance.

    Please keep in mind I'm totally new to this and so am not arguing against advice, rather my questions are for clarification.

    Next I'm gonna be asking about IGH's... Alfine 8 or 11?
    Trek DS 8.3 -> Trek Domane 2.0 + (CrossRip Ltd or Crockett 5 Disc)
    www.ascendingparadise.com

  10. #10
    S'Cruzer pierce's Avatar
    Join Date
    Jun 2010
    Location
    122W 37N
    My Bikes
    too many
    Posts
    2,285
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by pierce View Post
    I was down at the LBS and they had a pair of the Randonneur Hyper x38's on the shelf, which I noted were labeled 40-622 even tho they also said 700x38. this usually means the tire runs slightly oversize. I decided to go ahead and order the x35 size, and will report in when they get here and when I get them mounted.
    and actually, I got said Hyper Randonneurs in x32, which pumped to 70psi measure 33mm on my 1" wide OD rims. and they go like grease compared with the Nimbus my bike came with! felt like I was flying up the small hills on my 15 mile loop yesterday. http://goo.gl/maps/1uA1s

  11. #11
    aka Phil Jungels Wanderer's Avatar
    Join Date
    Apr 2005
    Location
    North Aurora, IL
    My Bikes
    Road & Hybrid
    Posts
    5,449
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Get a set of Schwalbe Marathon Supremes, and run 'em at 92PSI. You will be amazed at the difference.

    "Retirement is the best job I ever had!" Me, 2009


    Specialized Crosstrail Sport - '08
    Nishiki Sport - misappropriated from my youngest son (circa 1984)
    Marin Stinson - misappropriated by my youngest grandson - '01
    "The Beast" - 1990 Schwinn Airdyne (in the basement for winter torture)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •