QUOTE(wke002 @ Dec 12 2014, 10:19 AM)
Etigge Sifu,
can my current MTB Sram X7 , 2x10 gear install in one of these bikes. if yes, any modification requires. Soon have the intention to upgrade my MTB Groupset.
1. Tern Link D8
2. Boardwalk D8
3. Dahon Speed P16
this Dahon 2015 still no news despite mails to the distributor. mmmm..... any idea what will the 2015 Dahon Speed price like .
Yes, some of the old parts can be used. As for the crank, MTB cranks can be used but the chain rings are too small. The maximum size is only 44T and you can find 48T but that is also too small for a 20 inch wheel. Usually folding bikes use 52T or 53T but some are only 48T for the ease of pedaling. Many mistook this as easy to ride

but in actual it is the gear ratios. When you are really riding fast, you will freewheel like a swimming dog even on the highest gear. The SRAMs RD is good for folding bikes actually as the design hooks smaller (almost like a Neo) but you need to adjust the chain length so that the lowest setting of the RD cage do not pass the tire rims below and also the not touching the rims on some settings. Problem can be solved if you use 10 speed road bike cassettes as the maximum is 32 T. Using 11/36T moiuntain bike cassette might be too low if the last 2 gears are engaged.
Shifters are off course OK!

As for the FD , too bad, you cannot use because you need brazed FD like road bikes for all 3 models you mentioned above. You have to install an FD adapter so the FD has to be a brazed unit.