Følgende står på Vikingtour.no :
Blåhøe is 15 kms up from Vågå and only the first km is asphalt. The rest is mostly smooth gravel, well doable with say GP4000S or similar top tires. The final two kms are rougher and you should see if your bike will take 28 mms cyclocross style tires with more puncture resistance. If conditions are too rough towards the summit, the prologue may be shortened. You do not need to bring an extra bike especially for the prologue or any other stage.
