Hi Polo, I sent you this in a PM but for the benefit of others I will post my response here as well. Maybe someone else can chime and and provide some info on reusing your BB92 cranks in a BSA or BB30 frame. That's something I don't know about.
Swapping your Scott Genius 930 frame to an IP/CS-036 frame like have, we can look at the possibility of reuse component by component:
Fox Nude Shock - You will need a shock that is 6.5" x 1.5" (or 165mm x 38mm). Your Fox shock is 190mm x 50mm so I don't think that will work, although you could take a wait and see approach, perhaps if you get the right bushings you could make it work. Otherwise, I would recommend selling the shock with the frame anyway. A new shock is about $400.
Frame - Upgrade to an CS-036 would be what I'd recommend as it's essentially a Scott Spark from, however, this FS frame is not available in BB92 like your Scott Genius. Your only other choice becomes a Carbonal Titan 29er which is available in a BB92 bottom bracket.
Fork - Fox CTD, should be able to reuse as long as the steer tube was not cut down too much. You need to measure your fork, from crown to top of stem and check and see if there is enough steer tube remaining to fit your new frame. Alternatively, if you can find the head tube length of your current frame and compare it to the Titan head tube length in the size frame you want.
Headset - You wil most likely need to purchase a headset to go with your new frame, chances are slim that your Genius headset will be the correct size for the Titan frame. Most likely you would also sell the headset with the frame.
Stem - Yes, should be able to reuse.
Handlebar - Yes, should be able to reuse.
Grips - Yes.
Brakes Levers/Calipers/Rotors - Yes, should be able to reuse, however you may need to run new rear brake lines if a longer line is needed for the new frame. A new line is not expensive, however you will need some brake fluid and learn how to bleed your Shimano brakes. However, it looks like you have a 180mm rear rotor which may need an adapter plate, 160mm is a standard rear rotor. If your Scott frame has the right adapter, you could reuse it on the Titan. You should have not problem with the front brakes as they are independent of the frame.
Shifters - Yes, they mount to the same bar you already have.
Front Derailleur - Maybe. You will need to ask Carbonal what FD the Tita uses. Otherwise, a new FD is not that expensive, less than $100 in most cases. However, you said you are running a 1x setup so reusing your FD is not an issue unless you want to convert back to using a FD in the future.
Rear Derailleur - Yes. This should not be a problem. However, again, you may need a new cable if the Titan frame has a longer run from the bars to the RD.
Cranks - Yes, if the new frame is the same BB spec, meaning both are BB92 like on the Carbonal Titan, you should be able to reuse. However, if you are wanting to swap to the CS-036 then you will either need to find a way to adapt your cranks or buy new.
Bottom bracket - Yes, as long as both frames are BB92 like the Carbonal Titan, the bottom bracket should fit. However, if going to the CS-036 then you will need a new BB.
Pedals - Yes.
Chain - Maybe. If the distance from the cranks to the cassette is similar, otherwise you will need to add/remove links. It's easy to remove links, harder to add them. Otherwise your in need of a new chain, about $30 or so depending one what you get.
Cassette - Yes, goes with the wheels.
Front wheel - Yes, goes with your fork.
Rear wheel - Not sure. Your Scott bike is a 142x12 according to the specs. The Titan is 135x10 axle. You would need to contact Carbonal to see if they have 142x12 rear dropouts available for the frame. They might although I would think they would advertise this as a feature/option of the Titan frame. If the Titan does not have the newer 142x12 thru axle, then you will need to convert your rear hub to 135x10. Some hubs have the ability to convert. You will need to ask your local Scott Bikes dealer if your rear hub will convert.
Otherwise you are back to the CS/IP-036 frame as it has the 142x12 dropout that work with your rear hub, however, you would then need to buy a set of cranks. However, there might be an adapter that you can install in a BSA or BB30 BB in the frame that will accept your cranks. Really not sure, you would need to do some research.
Tires - Yes
. That's an easy one.
Saddle - Yes.
Seatpost - Yes, your Scott post is a 31.6mm according to the specs, so it will work in either the CS-036 or Titan.
Seatpost clamp - Yes.
If you are upgrading to save weight, you might drop about 2 lbs. Not a lot but every little bit helps. Not to mention a carbon frame rides much smoother than an AL frame.
Hope my reply helps and good luck with your upgrade.
-Dave
