Adam Ondra - Almost all the hardest routes have sika

In the latest episode of The Struggle Climbing Show, Adam Ondra talks about sika reinforcement. "Routes harder than 9a+, I can maybe think of five routes that have no sika at all."

"I thought like chipping routes 15 years ago was a thing of the past.... to me it seems like it is coming back and nobody seems to care."

The reason for this is that most hard routes are on limestone. Ondra thinks it is OK to reinforce holds that could break off in the future, but he says that many climbers also put sika on holds that would break more easily. Ceüce is an example of good rock quality where sika is not needed that goes also for Yosemite, Flatanger and other granite crags.