Change rims from 26 inch to 27 inch

[Lhatch4]

This is my old titanium bike that I changed to 650b. The frame can fit 26x2.5 tires. When switching to 650b I had to go down to a 2.1 width tire and low profile lugs. It has just enough clearance on the RS SID fork to work. The increase in bottom bracket height was minimal with my setup. I recently added a dropper post and I like the bike overall.

I once did a 650b conversion on an early 90s steel stumpjumper with a ridged fork. I found some cantaleaver brakes with longer reach that I could adjust to make the pads reach the rims. The end product wasn't as good. I had to use 1.95 width tires on that one.

 

[baron von greenback]

Someone explain what 650b is

 

[sick-lizard]

27.5 = 650b

 

[bikeworkshop]

27.5 = 650b

=584mm bead seat diameter.
700=622mm
26=559mm

 

[baron von greenback]

Jesus there's nowt like confusing shit more

 

[bikeworkshop]

Jesus there's nowt like confusing shit more

I love the 5 different, incompatible 26" wheel sizes

26/559 mtb
26x1 3/8 590mm roadster
26x1 1/4 597mm Mid century sport
26x 1 1/2 utility 584mm
650c 26 continental race 571mm

 

[baron von greenback]

See this what I mean 26 inch should be a 26 inch wheel you'll have to explain this to me slowly slowly catchy monkey

 

[Lhatch4]

See this what I mean 26 inch should be a 26 inch wheel you'll have to explain this to me slowly slowly catchy monkey

Ignore all of that. 26 was standard for MTB until around 2003. Then the 29er came out 29=700c. A while later 27.5 came out. 27.5=650b. That's all anyone really needs to know about MTB wheel sizes.

 

[PhillB]

I love the 5 different, incompatible 26" wheel sizes

26/559 mtb
26x1 3/8 590mm roadster
26x1 1/4 597mm Mid century sport
26x 1 1/2 utility 584mm
650c 26 continental race 571mm

Yes, when you buy old wrecks from the 1930's there a period where you are hoping it's 26 x 1&3/8, but it always turns out to be 26x 1&1/4 ( the difference in tyres choices is astounding)

 

[baron von greenback]

Ignore all of that. 26 was standard for MTB until around 2003. Then the 29er came out 29=700c. A while later 27.5 came out. 27.5=650b. That's all anyone really needs to know about MTB wheel sizes.

Thanks mate that's all I need to know I hate these new bikes it was either a racer bmk or mountain bike no body even calls them racers anymore now( it's like sitting on a razor blade )if you understand that all I need to say