Exactly what is a JAM? Lol
Also...I have a 24 inch-21 speed Tanzer Rhino that I bought from Toy's R US about 4 yrs ago.
Oddly it warned me it wasnt for off road use or for downhills I dont think.
But yea...im going down a bike path and there's a hill with a sharp turn...I decided to see if I could make it..
BOOM! I fly off the edge and me and the bike are flipping down the hill. The breaks stopped working and one of the gears broke. Plus my cuzin left it in the rain some parts rusted(re-oiled the chain tho)
It runs but the emergency brake is the only thing that HALF works(it slows in 2 sec pulses)
And besides im thinking about buying another bike...my bike is quite heavy and I think it slows me down alot.
For close in areas I ride at 2-6 for long distance I generally do 2-4...I dont like to go much higher than 2-4 cuz 2-4 is bad enough it just puts slightly less stress on me even tho im going slower in my opinion(2-7 doesnt work)