If you aren’t already familiar with Monte Carlo simulations, you need to read up on them. It basically shows that without some bond allocations you run a higher risk of running out of money in retirement, if you are withdrawing a significant amount every year (2-4%+) to live on. That’s where the 60:40 model originated from.
You aren’t at retirement, so you don’t need to be that heavy on bonds yet, but you should have some and grow it over time.
If you elect to not have bonds, it could still end up very successful, but you would have to hope the market returns, especially early in retirement, aren’t particular poor historically. You will also have to be able to live with some nail biting drops in retirement account value, 50% for example.
If you have a pension that covers all your living expenses in retirement, the need for bonds becomes much lower.
The decision you have ahead of you is very very important. It took me over two years to find the strategy I was comfortable with.