>>1751004this anon is correct:
>>1751046Whack a new end cap on there, you might try a daub of grease inside it first to give a bit of a "seal," which I wouldn't normally recommend except in cases like yours.
>>1750892You need to take out the rear wheel so you can work the shifter without pedalling.
Use automotive spray degreaser to blast out the old separated grease and crud, working the shifter up and down through the gears until it frees up. If it doesn't free up, you'll need to invert the bike and spray a heap of degreaser in there to leave overnight (put a towel under it to catch the crud.)
When it dries, you can give it a spray with light lubricant: WD40 is ok in a pinch, but inox mx5 or triflow are much better. spray a bit in and work the shifter in the same way you did before.
>>1750835The well accepted weight distribution for downhill MTB is around 45:55 front to rear.
Measure your distribution on a scale and a even height block of wood or book.
you can adjust your saddle back/up, as well as as spacers to your stem to get more rearward weight.
Unless your bike is a poor fit for you, it shouldn't be too hard to get a good weight distro. Longer/shorter stems, setback seatposts, and changing bar width/sweep can be used as some more advanced techniques for tricky bikes, but obviously cost money.
