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Old 11-11-10, 09:09 PM   #1
RidingMatthew
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i have a Jamis 650b1

Help I have a Jamis 650b1 and am wondering where I can find new tubes?

Does anyone know where to get new tires? for in the future?

thanks
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Old 11-11-10, 09:56 PM   #2
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Go tubeless! Although it depends on your wheelset, here is one option:
http://www.universalcycles.com/shopp...ls.php?id=1208
Talk with someone at your local shop. They should be able to help point you in the right direction.
The tubeless ride is night and day, head and shoulders above compared to riding with tubes.
Ask around to find out which tires other riders who are riding tubeless in your area successful with.

OK, if all you really want are tubes:
http://www.universalcycles.com/shopp...s.php?id=21312
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Old 11-11-10, 10:12 PM   #3
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You have a $2800 bike & you don't even know enough about it to buy a new set of tires & tubes? I take it no one ever told you that when you start at the top, there's no where to go but down..
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Old 11-12-10, 12:04 AM   #4
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The difference in rim diameter is a mere 25mm (just under one inch), 26" tubes will work fine.
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Old 11-12-10, 06:27 AM   #5
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Easy Sam...its a nice bike.
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Old 11-12-10, 08:12 AM   #6
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I sometimes don't know when to just shut up.
650b, Sam. It's pretty new to a lot of us and not a lot is available yet - - anywhere. I'm still waiting for DH tires (and my fav rims) to even exist in that size.



Matthew - The only place I found that had anything more than skinny 650c road tubes was AEBike. They have a one:

http://aebike.com/product/q-tubes-65...u6870-qc30.htm

I'd go with Svr's advice myself. But if you want to get closer in size, you can look at 26" tubes rated with a similar ISO / ETRTO diameter rating (which in this case is 584mm) as 650b:

http://aebike.com/product/q-tubes-26...u6770-qc30.htm


And I learned something new today. Did not know about ETRTO. More info here for the curious:
http://www.sheldonbrown.com/tire_sizing.html
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Old 11-12-10, 09:57 AM   #7
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You have a $2800 bike & you don't even know enough about it to buy a new set of tires & tubes? I take it no one ever told you that when you start at the top, there's no where to go but down..
why so harsh dood?
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Old 11-12-10, 09:57 AM   #8
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op, you wouldnt have this problem if you would have went with a Power X
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Old 11-12-10, 10:41 AM   #9
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Just use 26" tubes. They will stretch. I use em in my 29er with no problems.
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Old 11-12-10, 10:57 AM   #10
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I recently made the jump to Stans Tubeless. Its a good system, but always carry a spare tube. There are flats and then there are , well, CRAP, look at what's sticking through my tire! I shoulda never tried to bunny hop that porcupine.
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Old 11-12-10, 11:30 AM   #11
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why so harsh dood?
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op, you wouldnt have this problem if you would have went with a Power X
Why do you always say the same thing? You aren't funny.
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Old 11-12-10, 11:37 AM   #12
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Why do you always say the same thing? You aren't funny.
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Old 11-12-10, 05:50 PM   #13
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650b, Sam. It's pretty new to a lot of us and not a lot is available yet - - anywhere. I'm still waiting for DH tires (and my fav rims) to even exist in that size.
My bad, sometimes I speak when I shouldn't. That said, what makes this bike so unique?

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Old 11-12-10, 07:17 PM   #14
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^^ I personally like the concept of 650b - - giving you the best of both worlds: larger hoops (and a bit larger contact patch) to roll over obstacles and minimize trail chatter; the quicker-steering traits and less inertia of smaller hoops. I am of the opinion (my opinion only, mind you) that 29er goes too far in the quest for advantages of a larger-diameter tire. It creates awkward frames with cumbersome traits that are really best-suited to riders around my height (6'-1") and larger. I feel that 650b is a good happy-medium.

I would go so far as to say that a 650b front/26" rear could become the new standard if manufacturers caught up and people gave it a chance - - in much the same way the change from 19" to 21" front wheels transformed off-road motorcycles.
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Old 11-14-10, 08:12 AM   #15
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You have a $2800 bike & you don't even know enough about it to buy a new set of tires & tubes? I take it no one ever told you that when you start at the top, there's no where to go but down..
Thanks for the encouragement bud, why so negative?

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My bad, sometimes I speak when I shouldn't. That said, what makes this bike so unique?
I appreciate the apology. It is unique because it has 27.5" wheels. See dminor post. I have seen a speed increase and confidence increase in my self I have ridden over things that I would walk over in the past.

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^^ I personally like the concept of 650b - - giving you the best of both worlds: larger hoops (and a bit larger contact patch) to roll over obstacles and minimize trail chatter; the quicker-steering traits and less inertia of smaller hoops. I am of the opinion (my opinion only, mind you) that 29er goes too far in the quest for advantages of a larger-diameter tire. It creates awkward frames with cumbersome traits that are really best-suited to riders around my height (6'-1") and larger. I feel that 650b is a good happy-medium.

I would go so far as to say that a 650b front/26" rear could become the new standard if manufacturers caught up and people gave it a chance - - in much the same way the change from 19" to 21" front wheels transformed off-road motorcycles.
I agree big time!
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