The chain is intended for : Derbi 659 Mulhacen Cafe 2009 - 2012
Chain size : 520
Chain length : 106

Chain DID 520 VX3, X-Ring.
Strength 36.5kN
D.I.D is a Japanese manufacturer of high performance chains that is world renowned for the quality of its chains and chain sets. Closely involved in competitive racing, this brand also supplies original parts for a range of machines.

New VX3 type chain
X-Ring links with low friction
For road and off-road wheels
The new VX3 is suitable for a wider range of engines (max 800 CC)
Longer life due to the fact that the sealing ring is more difficult to slide out of the chain
Improves power transfer due to higher chain stiffness
Excellent performance/life ratio thanks to lower friction

If you get a longer chain, it's not a mistake. Just shorten the chain.