When I ordered 650b Foss tubes I received 26 inchers, and assumed that it 
was intentional on Riv's part.  I subsequently had a lot of problems with 
them.  Guess I should have given a call and asked.

On Thursday, January 24, 2013 1:47:07 PM UTC-7, William wrote:
>
> Rene
>
> Last time I was there at Riv HQ I scanned the garage-sale leftovers table. 
>  I scored an A Homer Hilsen cap that only fits freakishly large domes like 
> mine.  Under the table were the Foss tubes for $10.  They were mostly or 
> all 650B x Fat.  I asked Vince about it and he said that it seems that 
> "they weren't what people thought they were".  I took that to mean that 
> enough people complained about them that they decided to simplify and stop 
> carrying them.  One misperception I can imagine people having is that they 
> are flat-proof.  I've had two flats with Foss tubes.  I was pleased that 
> they were trivially easy to patch with the Fossy patches, but I would have 
> been bummed if I thought they were flat-proof and hadn't bought the special 
> patches.  
>
> The other weird thing about them that I have noticed is that they seem to 
> have thinned out at the rim well, where they are pressed against the 
> adhesive rim strip.  I just swapped tires on the Hilsen last night and 
> pulled them out.  The poly material seems paper thin in that area now. 
>  Maybe if that gets much thinner I'll start to see slow de-pressurizing 
> like you?  
>
> I'm still using the Foss tubes, one pair of 650xnarrow and I have one pair 
> of 650xFAT for when I run knobbies on the Bomba.  I'm not throwing them 
> out, but all my backstock of  650B tubes are now Schwalbes.  
>
>
> On Thursday, January 24, 2013 11:54:37 AM UTC-8, René wrote:
>>
>> I have Foss tubes on my Betty. The rear one is losing air perceptbly 
>> every day, but at a very slow rate so it doesn't go flat in a day but I can 
>> tell the difference from morning (pumped before I leave the house) to 
>> evening when I ride back.
>>  
>> I'm going to pull the tube out to see if I can detect anything, but was 
>> wondering what the overall feeling is for these now. Keep them or go back 
>> to Schwalbe tubes?
>>  
>> Riv doesn't seem to be selling them anymore... is that a clue?
>>  
>> René
>>
>
On Thursday, January 24, 2013 1:47:07 PM UTC-7, William wrote:
>
> Rene
>
> Last time I was there at Riv HQ I scanned the garage-sale leftovers table. 
>  I scored an A Homer Hilsen cap that only fits freakishly large domes like 
> mine.  Under the table were the Foss tubes for $10.  They were mostly or 
> all 650B x Fat.  I asked Vince about it and he said that it seems that 
> "they weren't what people thought they were".  I took that to mean that 
> enough people complained about them that they decided to simplify and stop 
> carrying them.  One misperception I can imagine people having is that they 
> are flat-proof.  I've had two flats with Foss tubes.  I was pleased that 
> they were trivially easy to patch with the Fossy patches, but I would have 
> been bummed if I thought they were flat-proof and hadn't bought the special 
> patches.  
>
> The other weird thing about them that I have noticed is that they seem to 
> have thinned out at the rim well, where they are pressed against the 
> adhesive rim strip.  I just swapped tires on the Hilsen last night and 
> pulled them out.  The poly material seems paper thin in that area now. 
>  Maybe if that gets much thinner I'll start to see slow de-pressurizing 
> like you?  
>
> I'm still using the Foss tubes, one pair of 650xnarrow and I have one pair 
> of 650xFAT for when I run knobbies on the Bomba.  I'm not throwing them 
> out, but all my backstock of  650B tubes are now Schwalbes.  
>
>
> On Thursday, January 24, 2013 11:54:37 AM UTC-8, René wrote:
>>
>> I have Foss tubes on my Betty. The rear one is losing air perceptbly 
>> every day, but at a very slow rate so it doesn't go flat in a day but I can 
>> tell the difference from morning (pumped before I leave the house) to 
>> evening when I ride back.
>>  
>> I'm going to pull the tube out to see if I can detect anything, but was 
>> wondering what the overall feeling is for these now. Keep them or go back 
>> to Schwalbe tubes?
>>  
>> Riv doesn't seem to be selling them anymore... is that a clue?
>>  
>> René
>>
>

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