I recently bought an older 2Danger Cross SL cross/fitness bike for €30, probably from around 2006. The aluminium frame seems to be in decent condition, but the wheels are bent, the gears sometimes slip, and the V-brakes feel weak.
My original idea was to modernize the bike as much as possible. I considered disc brakes, tubeless wheels, and a 2×10 drivetrain. After looking into compatibility and costs, I decided that keeping things simpler would probably give me a better result for the money.
My goal is to turn it into a reliable, reasonably fast bike for everyday riding, longer trips, and mixed road/gravel use, including wet and colder weather. I want stronger wheels, dependable braking, smoother shifting, and slightly higher top-end gearing without replacing good components unnecessarily.
The bike currently has a 3×9 drivetrain with a 48/38/28 crankset, a Shimano XT RD-M760 SGS rear derailleur, Shimano Deore shifters, 700C wheels, and V-brakes. I rarely use the smallest front chainring, which is why I'm considering switching to 2×9.
My proposed parts are:
- Wheels: Vuelta Airtec 622-21 rim-brake wheelset, 36 spokes, Shimano Deore HB-T610/FH-T610 hubs, 100/135 mm quick release — €95 for the pair.
- Tyres: Schwalbe Marathon 365, 47-622, with regular inner tubes.
- Brakes: Keep the existing V-brakes but fit Kool-Stop Salmon pads and inspect the cables.
- Crankset: Shimano Sora FC-R3000 50/34, with the appropriate Hollowtech II bottom bracket.
- Cassette: Shimano CS-HG400-9, 11–34T.
- Chain: Shimano CN-HG93 or KMC X9 EPT.
- Rear derailleur: Keep the existing Shimano XT RD-M760 SGS, but replace its two jockey wheels with the compatible Shimano pulley set Y-5X998150.
- Shifters: Ideally keep the existing 9-speed rear shifter and, if possible, the current front shifter.
The thinking behind this setup is that the 36-spoke Deore wheelset should be a solid durability upgrade, while keeping the existing XT derailleur avoids spending money on a completely new drivetrain. Moving from a 48T to a 50T large chainring would also give me a modest increase in top-end gearing.
I initially hoped to keep the entire rebuild around €200, although replacing everything listed above will probably push me beyond that. I'm trying to spend more only where it makes a noticeable difference.
Before buying, I'd really appreciate some advice from people with experience rebuilding older bikes:
Will a Shimano Sora 50/34 road crankset work properly with my existing Deore triple front derailleur and front shifter, or would I need to replace those too?
Is 50/34 with an 11–34 cassette a sensible combination for a mixed-use bike with a 9-speed XT rear derailleur?
The current rear wheel uses a 135 mm nutted axle. Assuming the frame has standard open dropouts, is switching to a 135 mm quick-release hub straightforward?
Are there any other compatibility issues I might be overlooking, especially with the bottom bracket or chainline?
Would you choose these parts, or is there a more cost-effective way to rebuild this bike?
I still need to confirm the bottom-bracket shell dimensions, rear dropout compatibility, and frame/fork clearance for 47 mm tyres.
I'm posting because I'd like a final sanity check from experienced cyclists and mechanics before spending money on parts that might not work together. I'm not trying to build a high-end bike—just make an inexpensive older bike genuinely enjoyable and dependable to ride.