[RBW] Re: Query Concerning Rim Width and Tire Size

2010-05-06 Thread doug peterson
George:

You mention taking your Atlantis on a road trip.  Is this a bke tour
or are you taking the bike along with you on a vehicle trip?  Think
about what you're going to use the bike for and whether you need to
ride it every day to get where you are going.  Those constraints are
important in your choice of tire.  If the bike is going with you but
just for day rides, you can go with about any tire you want.  But if
the bike is your primary mode of transportation, 28 might be a bit
narrow.

FWIW, I run 35mm Marathon Supremes on my Atlantis for everything from
loaded tours to So Cal sand washes.  They're absolutely perfect for
touring but perhaps a bit lacking off-road :).  BTW, I have no clue on
the tire size / rim size queston, but I'll wager that if Riv supplied
the wheels, they could advise you on appropriate tire sizes.

dougP

On May 6, 9:42 am, Ken Freeman kenfreeman...@gmail.com wrote:
 The important numberfor the rim is the inner width, the spacing between the
 inner edges of both bead hooks.  To measure it the tire must be off.
 Typically a tire shouldn't be less than maybe 8 mm wider than this number or
 more than maybe 20 mm wider - I don't know the precise numbers.   But it's
 definitely based on the inner width.  Few bicycle rims, if any, have inner
 widths as large as 28 mm.





 On Thu, May 6, 2010 at 12:08 PM, GeorgeS chobur...@gmail.com wrote:
  I am very foggy on the relationship between rim and tire size.  My
  Atlantis came with Velocity Cliff Hanger rims which are approximately
  28mm wide.  The tires are Big Apples.  I want to put some narrower
  tires, perhaps Marathon Racers, on the wheels for a road trip this
  summer.  I gather I cannot go narrower than 28.  Is that the only
  number I should be worried about?  Thanks.
  GeorgeS

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[RBW] Re: Query Concerning Rim Width and Tire Size

2010-05-06 Thread Michael_S
The cliffhanger is one of the widest rims around at 28mm outside
width. I would not ride anything narrower than a 32mm tire on a rim
that wide. Since it's only available in 26 in. rims that would equate
to a 1.25 wide tire.  I don't have any bikes in that size but I think
there are not many roadish tires in that size.

~Mike~



On May 6, 10:57 am, doug peterson dougpn...@cox.net wrote:
 George:

 You mention taking your Atlantis on a road trip.  Is this a bke tour
 or are you taking the bike along with you on a vehicle trip?  Think
 about what you're going to use the bike for and whether you need to
 ride it every day to get where you are going.  Those constraints are
 important in your choice of tire.  If the bike is going with you but
 just for day rides, you can go with about any tire you want.  But if
 the bike is your primary mode of transportation, 28 might be a bit
 narrow.

 FWIW, I run 35mm Marathon Supremes on my Atlantis for everything from
 loaded tours to So Cal sand washes.  They're absolutely perfect for
 touring but perhaps a bit lacking off-road :).  BTW, I have no clue on
 the tire size / rim size queston, but I'll wager that if Riv supplied
 the wheels, they could advise you on appropriate tire sizes.

 dougP

 On May 6, 9:42 am, Ken Freeman kenfreeman...@gmail.com wrote:





  The important numberfor the rim is the inner width, the spacing between the
  inner edges of both bead hooks.  To measure it the tire must be off.
  Typically a tire shouldn't be less than maybe 8 mm wider than this number or
  more than maybe 20 mm wider - I don't know the precise numbers.   But it's
  definitely based on the inner width.  Few bicycle rims, if any, have inner
  widths as large as 28 mm.

  On Thu, May 6, 2010 at 12:08 PM, GeorgeS chobur...@gmail.com wrote:
   I am very foggy on the relationship between rim and tire size.  My
   Atlantis came with Velocity Cliff Hanger rims which are approximately
   28mm wide.  The tires are Big Apples.  I want to put some narrower
   tires, perhaps Marathon Racers, on the wheels for a road trip this
   summer.  I gather I cannot go narrower than 28.  Is that the only
   number I should be worried about?  Thanks.
   GeorgeS

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  Ann Arbor, MI USA

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[RBW] Re: Query Concerning Rim Width and Tire Size

2010-05-06 Thread Mitch Browne
It's always worthwhile to consult Sheldon Brown 
http://www.sheldonbrown.com/tire-sizing.html

On May 6, 11:59 am, Michael_S mikeybi...@rocketmail.com wrote:
 The cliffhanger is one of the widest rims around at 28mm outside
 width. I would not ride anything narrower than a 32mm tire on a rim
 that wide. Since it's only available in 26 in. rims that would equate
 to a 1.25 wide tire.  I don't have any bikes in that size but I think
 there are not many roadish tires in that size.

 ~Mike~

 On May 6, 10:57 am, doug peterson dougpn...@cox.net wrote:





  George:

  You mention taking your Atlantis on a road trip.  Is this a bke tour
  or are you taking the bike along with you on a vehicle trip?  Think
  about what you're going to use the bike for and whether you need to
  ride it every day to get where you are going.  Those constraints are
  important in your choice of tire.  If the bike is going with you but
  just for day rides, you can go with about any tire you want.  But if
  the bike is your primary mode of transportation, 28 might be a bit
  narrow.

  FWIW, I run 35mm Marathon Supremes on my Atlantis for everything from
  loaded tours to So Cal sand washes.  They're absolutely perfect for
  touring but perhaps a bit lacking off-road :).  BTW, I have no clue on
  the tire size / rim size queston, but I'll wager that if Riv supplied
  the wheels, they could advise you on appropriate tire sizes.

  dougP

  On May 6, 9:42 am, Ken Freeman kenfreeman...@gmail.com wrote:

   The important numberfor the rim is the inner width, the spacing between 
   the
   inner edges of both bead hooks.  To measure it the tire must be off.
   Typically a tire shouldn't be less than maybe 8 mm wider than this number 
   or
   more than maybe 20 mm wider - I don't know the precise numbers.   But it's
   definitely based on the inner width.  Few bicycle rims, if any, have inner
   widths as large as 28 mm.

   On Thu, May 6, 2010 at 12:08 PM, GeorgeS chobur...@gmail.com wrote:
I am very foggy on the relationship between rim and tire size.  My
Atlantis came with Velocity Cliff Hanger rims which are approximately
28mm wide.  The tires are Big Apples.  I want to put some narrower
tires, perhaps Marathon Racers, on the wheels for a road trip this
summer.  I gather I cannot go narrower than 28.  Is that the only
number I should be worried about?  Thanks.
GeorgeS

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   Ann Arbor, MI USA

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Re: [RBW] Re: Query Concerning Rim Width and Tire Size

2010-05-06 Thread Ken Freeman
I believe Sheldon cautioned us to use the inner rim width to assess tire
suitability, not the outer.

On Thu, May 6, 2010 at 5:15 PM, Mitch Browne mitch.bro...@gmail.com wrote:

 It's always worthwhile to consult Sheldon Brown
 http://www.sheldonbrown.com/tire-sizing.html

 On May 6, 11:59 am, Michael_S mikeybi...@rocketmail.com wrote:
  The cliffhanger is one of the widest rims around at 28mm outside
  width. I would not ride anything narrower than a 32mm tire on a rim
  that wide. Since it's only available in 26 in. rims that would equate
  to a 1.25 wide tire.  I don't have any bikes in that size but I think
  there are not many roadish tires in that size.
 
  ~Mike~
 
  On May 6, 10:57 am, doug peterson dougpn...@cox.net wrote:
 
 
 
 
 
   George:
 
   You mention taking your Atlantis on a road trip.  Is this a bke tour
   or are you taking the bike along with you on a vehicle trip?  Think
   about what you're going to use the bike for and whether you need to
   ride it every day to get where you are going.  Those constraints are
   important in your choice of tire.  If the bike is going with you but
   just for day rides, you can go with about any tire you want.  But if
   the bike is your primary mode of transportation, 28 might be a bit
   narrow.
 
   FWIW, I run 35mm Marathon Supremes on my Atlantis for everything from
   loaded tours to So Cal sand washes.  They're absolutely perfect for
   touring but perhaps a bit lacking off-road :).  BTW, I have no clue on
   the tire size / rim size queston, but I'll wager that if Riv supplied
   the wheels, they could advise you on appropriate tire sizes.
 
   dougP
 
   On May 6, 9:42 am, Ken Freeman kenfreeman...@gmail.com wrote:
 
The important numberfor the rim is the inner width, the spacing
 between the
inner edges of both bead hooks.  To measure it the tire must be off.
Typically a tire shouldn't be less than maybe 8 mm wider than this
 number or
more than maybe 20 mm wider - I don't know the precise numbers.   But
 it's
definitely based on the inner width.  Few bicycle rims, if any, have
 inner
widths as large as 28 mm.
 
On Thu, May 6, 2010 at 12:08 PM, GeorgeS chobur...@gmail.com
 wrote:
 I am very foggy on the relationship between rim and tire size.  My
 Atlantis came with Velocity Cliff Hanger rims which are
 approximately
 28mm wide.  The tires are Big Apples.  I want to put some narrower
 tires, perhaps Marathon Racers, on the wheels for a road trip this
 summer.  I gather I cannot go narrower than 28.  Is that the only
 number I should be worried about?  Thanks.
 GeorgeS
 
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[RBW] Re: Query Concerning Rim Width and Tire Size

2010-05-06 Thread Michael_S
Of course inner width is important, but there is a close relationship
between inner and outer widths.  and most manufacturers quote outside
width only  so ya use what ya got.  Sheldon's charts  by the way
only address the  large end of the equation. that is... how big can
you go.

~Mike~

On May 6, 3:08 pm, Ken Freeman kenfreeman...@gmail.com wrote:
 I believe Sheldon cautioned us to use the inner rim width to assess tire
 suitability, not the outer.





 On Thu, May 6, 2010 at 5:15 PM, Mitch Browne mitch.bro...@gmail.com wrote:
  It's always worthwhile to consult Sheldon Brown
 http://www.sheldonbrown.com/tire-sizing.html

  On May 6, 11:59 am, Michael_S mikeybi...@rocketmail.com wrote:
   The cliffhanger is one of the widest rims around at 28mm outside
   width. I would not ride anything narrower than a 32mm tire on a rim
   that wide. Since it's only available in 26 in. rims that would equate
   to a 1.25 wide tire.  I don't have any bikes in that size but I think
   there are not many roadish tires in that size.

   ~Mike~

   On May 6, 10:57 am, doug peterson dougpn...@cox.net wrote:

George:

You mention taking your Atlantis on a road trip.  Is this a bke tour
or are you taking the bike along with you on a vehicle trip?  Think
about what you're going to use the bike for and whether you need to
ride it every day to get where you are going.  Those constraints are
important in your choice of tire.  If the bike is going with you but
just for day rides, you can go with about any tire you want.  But if
the bike is your primary mode of transportation, 28 might be a bit
narrow.

FWIW, I run 35mm Marathon Supremes on my Atlantis for everything from
loaded tours to So Cal sand washes.  They're absolutely perfect for
touring but perhaps a bit lacking off-road :).  BTW, I have no clue on
the tire size / rim size queston, but I'll wager that if Riv supplied
the wheels, they could advise you on appropriate tire sizes.

dougP

On May 6, 9:42 am, Ken Freeman kenfreeman...@gmail.com wrote:

 The important numberfor the rim is the inner width, the spacing
  between the
 inner edges of both bead hooks.  To measure it the tire must be off.
 Typically a tire shouldn't be less than maybe 8 mm wider than this
  number or
 more than maybe 20 mm wider - I don't know the precise numbers.   But
  it's
 definitely based on the inner width.  Few bicycle rims, if any, have
  inner
 widths as large as 28 mm.

 On Thu, May 6, 2010 at 12:08 PM, GeorgeS chobur...@gmail.com
  wrote:
  I am very foggy on the relationship between rim and tire size.  My
  Atlantis came with Velocity Cliff Hanger rims which are
  approximately
  28mm wide.  The tires are Big Apples.  I want to put some narrower
  tires, perhaps Marathon Racers, on the wheels for a road trip this
  summer.  I gather I cannot go narrower than 28.  Is that the only
  number I should be worried about?  Thanks.
  GeorgeS

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