26" wheels in a 27.5" frame
devhads
Posts: 236
Why?
I need to get a new frame for my son who has had a big growth spurt. I recently paid out a couple of hundred quid on some 26" forks and have decent enough 26" wheels. I was looking at the On One Parkwood 27.5" for £99 and was wondering what the downside to sticking the forks and wheels on that.
I know the BB would be really low about 280mm but he has 165mm cranks a 32t single chainring and weighs next to nothing. The head angle would be steeper but it's already pretty slack at 67 degrees and he will only be using it for XC.
Anything else I'd need to consider?
It's a pretty good price for the frame and finding anything decent in 26" for that price seems impossible. It also means when he has another growth spurt I can get bigger wheels and forks instead of a frame.
I need to get a new frame for my son who has had a big growth spurt. I recently paid out a couple of hundred quid on some 26" forks and have decent enough 26" wheels. I was looking at the On One Parkwood 27.5" for £99 and was wondering what the downside to sticking the forks and wheels on that.
I know the BB would be really low about 280mm but he has 165mm cranks a 32t single chainring and weighs next to nothing. The head angle would be steeper but it's already pretty slack at 67 degrees and he will only be using it for XC.
Anything else I'd need to consider?
It's a pretty good price for the frame and finding anything decent in 26" for that price seems impossible. It also means when he has another growth spurt I can get bigger wheels and forks instead of a frame.
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Comments
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Head angle would remain the same, as you are using a smaller rear wheel too - though the fork trail will decrease slightly which will sharpen the steering a touch. I was thinking of doing the same myself, and using the largest 26 tyres I could get away with. It uses an awkward headset standard though, a campag style tapered integrated (IS42/IS52) which are usually pricey.0
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Yes, I thought about big tyres but will be using a 26er fork so could only do the back.
Found this headset, has good reviews and very cheap
http://www.wiggle.co.uk/lifeline-1-18-1 ... 60597730uk0 -
Chain reaction also do a similar headset that is very cheap too, i have used it on my parkwood.devhads wrote:Yes, I thought about big tyres but will be using a 26er fork so could only do the back.
Found this headset, has good reviews and very cheap
http://www.wiggle.co.uk/lifeline-1-18-1 ... 60597730ukFramebuilder
Handbuilt Steel 29er https://goo.gl/RYSbaa
Carbon Stumpjumper https://goo.gl/xJNFcv
Parkwood:http://goo.gl/Gf8xkL
Ribble Gran Fondo https://goo.gl/ZpTFXz
Triban:http://goo.gl/v63FBB0 -
supersonic wrote:Head angle would remain the same.
not if he was using 26inch forks0 -
POAH wrote:supersonic wrote:Head angle would remain the same.
not if he was using 26inch forks
Was thinking the same.
Did you ever use 26" wheels on your Dartmoor hornet frame?
I've some forks and spare wheels that I could knock up a cheap hardtail with.0 -
POAH wrote:supersonic wrote:Head angle would remain the same.
not if he was using 26inch forks
What are we talking, a couple of degrees steeper?0 -
swod1 wrote:
Was thinking the same.
Did you ever use 26" wheels on your Dartmoor hornet frame?
I've some forks and spare wheels that I could knock up a cheap hardtail with.
26 wheels and forks on it the now.What are we talking, a couple of degrees steeper?
wouldn't be much difference. only 10mm between a 27.5 and a 26 pike0 -
Ah yes, I missed the 26 fork bit! Thought it was a simple 26 wheel swap into 27.5 forks and frame. In which case depends on c2a, as mentioned above, is not always much difference. 20mm roughly equals a degree in angle change.0
