u/Chris2607

I recently got a road bike, and I get a sore lower back after riding it for 10-15 minutes. I then feel the need to stand up and get my lower back into extension.

I've been trying to adjust a few things:

• Saddle (height, angle, forward/backward position)
• Longer stem (went from 85 to 105mm)
• Handlebars (rotated a bit more down)

Now I'm thinking about flipping the stem or maybe raising it.

Some info on me and the bike:

• Height: 183 cm
• Weight ~75 kg
• Bike size: 56 (I believe - previous owner didn't know)
• Otherwise no lower back issues
• Pretty flexible lower back / hamstrings (I can get my hands to the floor with straight legs)

Any advice would be appreciated!