11-34 to 11-36 on Shimano 105 2800

Can I swap out the existing 11-34 cassette on my Cannondale Synapse 105 Carbon for a 11-36?  Will I need a larger cage or more links in the chain?

Local hills a bit too strong for me now around Stroud so need a bit of help!

Crookie

If you're new please join in and if you have questions pop them below and the forum regulars will answer as best we can.