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6 comments
Short videos like this one may be applicable to older gen. 8 speed systems which really don't need much effort to work perfectly.
Modern derailleurs work on much smaller tolerances than previous generations. Everything from a hanger alignment, cable routing, choice of cables, correct installation of the front mech with a bracing plate/screw and a cable pin orientation can make or break your shifting performance. What also many bike owners don't realise is how terrible their internal cable routing is by design. If you have a look inside many downtubes of big brand bikes you'll be shocked how ignorant designers/engineers let the gear wires run along the rear brake casing/hose without any system to manage/separate them. In such setups wires randomly partially wrap around the other cables/silencing foam badly affecting shifting. Then there are setups which will never index correctly almost from new, the best example being previous generations of "wooly" 10 and 11 Shimano speed groupsets or recently e.g. scandalously bad Sram Eagle SX and NX setups. Things are going to get even worse with increasing popularity of fully internal routing through stems, bars etc which will introduce more bends/friction into systems.
He appears to be using a Posidrive screwdriver (which is too large) rather than a JIS screwdriver.
It would also have been useful to actually set up the gears from scratch rather than twiddle about with an already perfect alignment.
Setting the basic rear cable tension with the chain on the second sprocket may well result in too much tensioon in the cable to enable engagement of the first sprocket. I would rather first screw in the barrel adjuster, pull the cable tught by hand and connect, select the first click on the shifter then use the barrel adjuster to move the mech to the required position.
I need to view this. The Tiagra on my winter bike does not like being in the lower 4 gears. Slips like hell, phantom changes etc.
I need to view this. The Tiagra on my winter bike does not like being in the lower 4 gears. Slips like hell, phantom changes etc.
How often do people find they need to adjust their derailleurs? Im finding that more and more often i need some sort of adjustment after any 50+mile ride. I know its expected after new cables due to soem strecthing etc. but has been ongoing for a while now. Using shimano 105 5700 i have heard is a bit of a tricky one to set up.
I had problems with 105 pretty much from new which turned out to be the cables, I changed the cables for yokozuna items and have never looked back. The cables were expensive, but I managed to almost do 2 bikes with 1 set. The increased brake performance was amazing and a complete bonus as I'd only bought the cables to sort the derailleurs.