On one reckon the pomp is good for 32 mm tyres or 35 slicks and the kaff is good for 35mm cross tyres. With a true rim and an extra link in the chain,I've put 35mm cx comps in my pomp and its fine, so maybe the kaff has more tyre clearance and you'd get away with something fatter.
On one reckon the pomp is good for 32 mm tyres or 35 slicks and the kaff is good for 35mm cross tyres. With a true rim and an extra link in the chain,I've put 35mm cx comps in my pomp and its fine, so maybe the kaff has more tyre clearance and you'd get away with something fatter.