Mom is really upset that I (Dad) am helping our 16 year old daughter learn about riding and working on motorcycles. Am I being unreasonable.

Edit: Meant to end title with a "?".Long story, Mom and I were never married and split when our daughter was 5.We've gotten along pretty well since then and were able to work out mutually-agreeable shared custody between ourselves without having to get the courts involved. Our daughter splits time more or less 50/50 between us, although lately she has been hanging out with me a little bit more often, of her own choice.Anyway, I'm a motorcycle mechanic, with my own shop. So of course, I own a few bikes and frequently ride them. My daughter has been riding with me (meaning, riding on the back of my bike) since she was 12, and she's loved it.As she has gotten older, and especially since getting her license, she's expressed interest in learning to ride and getting a bike of her own one day.She has also started asking to hang out in my shop while I work and expressed interest in learning to be a mechanic.Pursuant to both of those, I let her hang out with me at work and teach her some basic stuff. I also let her take one of my smaller bikes around the empty parking lot when the shop is closed. Just for the record, I don't let her ride on active roads and I only let her use the bike when she has her riding jacket, helmet, and good pants and shoes. I've promised her that I would pay for her to go through one of those MSF courses to get her motorcycle endorsement once she is 18.This morning mom called me and was absolutely furious that I've been letting her ride that bike and hang out in my shop.I was pretty blind-sided and asked what the big deal is, as she is safe as possible when I let her ride and she only works in the shop of her own free will, it's not something I pushed on her.Her mom told me she doesn't want our daughter learning to ride, and she is concerned that fostering our daughters interest in being a mechanic will turn her off of going to college (as mom wants her to do).I told Mom that I generally would not ignore her when she directly asks something, but in this case I am going to help her learn to ride safely. Our daughter has made it clear she intends to ride when she is an adult, regardless of what anyone says, so not letting her practice now in a safe way is only going to set her up for trouble later.And as for working in my shop, she's my daughter, if she says she wants to learn what I'm doing, I'm not going to tell her no.Mom and I ended our conversation without really agreeing on anything, which I kind of hate. As I said, I wouldn't normally ignore mom's wishes, but in this case I feel like I'm making the right call.Am I being wrong or unreasonable about this issue? I don't want to ruin mom and Is track record of getting along, but I am not going to deny my daughter something she is clearly interested in, either. Advice?TL;DR: I'm teaching my daughter to ride a motorcycle and showing her a bit of my trade. Mom is furious about it. Am I wrong? via /r/Parenting https://ift.tt/2SKtNMz