Hey guys, just bought a new bike. It has a pair of Shimano Deore M591 Shifters. Specs are here: http://www.bicyclesonline.com.au/201...deore-30-speed



Anyway to cut it short, the left bottom shifter (the one that uses the thumb) is extremely hard to push. I need to press it really far before it shifts the gear. In fact if I stand up beside my bike and try to press the shifter, my thumb isn't able to push in far enough to move the gear.

Is this normal? Sorry if it sounds like a stupid post but it's my first bike with shifters

Edit:

Okay when I say harder, I don't really mean more force, but moreover that it requires me to push the left shifter 2x the distance as required by the right shifter, which is extremely uncomfortable to do so. The below diagram illustrates what I'm talking about. The first 2 pictures were taken from Shimano's manual, while the bottom picture in red illustrates what I'm experiencing.