What bottom bracket do I need for my 2015 Defy 3?
Do some reading around/googling (the Giant site is useless) to check. I'm convinced mine is a BB90 (or 89) from reading reviews online. None of the numbers physically around it indicate what it is, although at some point (maybe this weekend) I'll have it back apart and fully document them all so I can order bearings myself in future.
I've moved the derailer, undone the tension and bracket to move it and now putting it back. Trying to get it to shift back up but it won't, pulled the cable through as it was before, used the barrel adjuster and set the outside delimiter screw but it won't jump up!
But its back how it was -.-, rubbing against the chain on the big gear and high gears gears at the back.
Damn. Weekend job!
Glad you got it back at least operational!
Good guide, although I struggled to understand it when I attempted mine and I followed this video instead (I find pictures and video guidance are much easier to follow!):
http://roadcyclinguk.com/how-to/maintenance/video-how-to-adjust-a-front-derailleur.html
In reality: Remove cable from equation. Get it lined up with the width of a 20p (or similar) above the teeth of the biggest chainring with the orientation as much in line with the centre of the chainrings as possible. Adjust limit screws while manually holding derailleur in positions (I wedge mine with a screwdriver/cable tie) to properly align it. Remove all adjustment and tension from cable, apply just enough to get cable taught with it on the smallest chainring. Check the adjustment is enough to move between both chainrings and then use barrel adjuster/slight adjustments to get it smooth.
You will get some chain rub with most modern 10-11 speed setups, there should be a the slight 'trim' on the shifter should be enough to compensate for it - I actually run mine 'trimmed' for the majority of my riding and use the 'top-end' of the shift for only my top 2-3 gears.
Best wheelset for 100-150?
Seen the Mavic Aksium for 120 if that's a good wheelset? They'll be replacing standard wheels off a Giant Defy 3.
Good wheelset. I can rate the
campy Khamsim G3's which are towards the bottom of that budget (running them here). I would happily run the
Scirocco's too which are just over the top of that budget (know several guys here who rate them). Not sure about the
Vento, guess they fall between the two but not heard of anyone running them.
Campy wheels are head and shoulders above the Giant P-R2's/S-R2's your Defy 3 came with. I spent many hours rebalancing and rebuilding my P-R2's several times, I should've spent the ~£100 on Khamsim's before I even started. Hindsight
Went out for a
blast last night and did a local training loop I've not done for months, I used it when building up my mileage and it was fun to blast along the 'old' roads again! There's a '
climb' I first struggled with (ran out of gears and had to stop) I didn't even need to drop many gears for - not even in little chainring these days!
Blasted it out at tempo (I guess?) to really see what I could do 2 days after a hilly 30 (sunday) and quite surprised how much my legs had recovered. They even feel good this morning, but
took it easy on the commute.