Been wanting to upgrade to a carbon for on the base model Specialized Sequoia I am riding. Couple things come into play, one being thru axle size preferable 12mm but 15 could be worked with. Here is previous post regarding that http://ridinggravel.forumchitchat.com/post/axleforkhub-conversions-8442193?pid=1295066673 . The other is fork rake. I am looking at the 3t luteus ii or the Enve cx thru axle disc fork. I really like Enve and I don't really want to have to mess with the hub etc. on my current wheel but the Enve fork has a 47 mm rake and 3t a 50 which matches my current fork. The way I understand it decreasing the rake will increase the trail and slow down my handling a bit. I like how the bike handles currently but if I had to go one way or the other I would actually prefer to speed it up a bit as my current use involves some pavement. On one side I wonder if I would notice the 3 mm difference. On the other I would like to play it safe and keep my rake the same albeit a bit more hassle and expense. Other then this issue both forks are similarly priced and seem like either one would fit my wants quite well. Any advice on this issue or input on these forks either way would be appreciated or suggestions if I'm overlooking an obvious fork that would fit my need.
I have not tried on a road bike, but on a mtb I can notice 5mm of trail difference. I would guess that 3mm change would be felt, but it would only take a minute to get used to it.
\n
\nIs the axle to crown height the same? If not, that will change your HA, which will also change fork trail.
\n
\nI would choose the better overal fork, and quickly adjust to the tiny change in handling.
\n
\nIf you wanted a lighter fostering front for paved use, going to a smaller tire on the front will have a dale whammy:
\n
\nLower front end means steeper HA, which means less trail, and smaller diameter wheels have less trail which the same fork and frame.
You are right, less fork rake (bringing the wheel closer to your frame), increases trail, making the bike a little more stable. But, 3mm is nothing. I do hope they are the same length though...
