The JUMPERTREK aluminium mountain bike frame is offered here for builders who work from measured numbers rather than paint. It weighs 3305g, measures 48×58cm, and carries an Italian-threaded bottom bracket shell at 36x24 (ITA-24) plus a 1 1/8"-28.6mm fork thread. Country of origin: Italy. on the frame.
What this frame gives a builder
The bottom bracket shell is cut to the Italian standard — 36x24, also written ITA-24 — which sets it apart from the more common BSC/BSA shells and matters the moment you start hunting for a period-correct crankset. The fork thread is 1 1/8"-28.6mm, and. The declared frame size is 48. Material: aluminium.
- Weight: 3305g
- Frame size: 48
- Dimensions: 48×58cm
- Bottom bracket thread: 36x24 (ITA-24)
- Fork thread: 1 1/8"-28.6mm
- Origin: Italy
Any major issue would be stated here — none is declared for this frame, and. The photographs are part of the description; inspect them alongside the measurements above before committing to a build., listed as a frame only.
Compatibility notes for restoration work
The Italian-threaded bottom bracket is the single detail to check first: it dictates which bottom bracket and crankset you can fit. The 1 1/8"-28.6mm fork thread defines the headset interface, and the is the number to match against your intended hub and wheel. If you are also refreshing the drivetrain on the same project, a period-correct SOLIDA left crank arm and a vintage front derailleur are both worth auditing against this shell standard before you buy.
For riders building a classic touring bike rather than a pure off-road machine, our CHARREARD CLC touring frame shows how a different tubeset and geometry change the ride entirely. And if you are still mapping out the full build, the bicycles section is where complete machines sit alongside the loose frames.
Key specifications
- Country of origin: Italy
- Size: 48
- Bottom bracket thread: 36x24 (ITA-24)
- Fork thread: 1 1/8"-28.6mm
- Manufacturer part number: 0000
FAQ
What bottom bracket thread does this JUMPERTREK frame use?
The frame is cut to the Italian standard, 36x24, also written ITA-24. This differs from the more common BSC/BSA thread, so match your bottom bracket accordingly before building.
What fork thread does the frame take?
The fork thread is 1 1/8"-28.6mm, which defines the headset interface for the build.
How much does the frame weigh and what size is it?
It weighs 3305g and measures 48×58cm, with a declared frame size of 48. The material is aluminium and the country of origin is Italy.
