drc hard ware dura sprocket 40t (d34-24-040) arrived today!...it looks like a japanese product (everything is in japanese), but "made in china" sticker on the box......it's very light, but feels very solid....

i've never installed a chain, so i'll probably just pay the $120 (labor) i was quoted to replace front and rear sprocket, and chain....i frequently replace the front sprocket (no chain removal required), but never broke off or installed a new chain...anybody have any idea to what special tools you'll need or difficulty level?...maybe this deserves a new topic and question....

 

Easy but requires some tools.
- Removal is simple. Just grind the heads off 2 adjacent pins and punch them out to release the link.
- Installation requires a vice/clamp/vicegrips to press-fit the plate onto the pins. Then it depends on what type of master link you have. A clip-type requires just a set of needle-nose pliers. A rivet-type requires a chain-pin knurler, or a punch and anvil.
Specialized chain tools are also available.