Originally Posted by
cb5107
After I add my heavier Ergon EP-5 grips and CrankBros 50/50 flat pedals, the weight has been going up
.
I even swapped the rear tire out from the stock 32 to a new TLR Botrager AW2 28. It turns out the 28 TLRs are heavier than the light Bontrager AW2 32s that come stock.
It is likely I will swap the wheels. During my tire change I weighed the rear setup and found the following. I am not a strict weight weenie but do have a scale in my workshop and use it for reference.
1129 g Bontrager rear wheel- bare rear wheel no cassette/tire/tube/brake disk etc
43 g plastic protector (removed)
398 g 10 spd 11-34 HG-500-10 cassette
27 g disk lock rings
105 g tektro 160-22 brake disk
380 g Bontrager 700x32 tires AW2 hard case lite (new Bont AW2 28C TLR = 391g)
118 g tube 700c 25/32
2200 g Total assembly (~4.85 Lbs or 21% of total bike weight just in the rear wheel assembly)
The wheel assembly as a whole is pretty heavy IMO. I have bontrager RXL wheels on my old FX model and it definitely feels more nimble.
I will look in this area, and the front wheel, for some weight savings as parts wear and sales come up.
On the wheels, that certainly sounds right. I expect changing the stock wheelset to something closer to 1500 grams out of the box would make a very noticeable difference.
I'm by no means a weight weenie, but I do like my bike to be as light as 'reasonably' possible. When I rebuilt my 2010 Sirrus Comp I took it from just over 22 lbs to 19.4 lbs (LBS Park scale) with pedals. That's light enough for me, and would be my 'target' for an S6 or 5 -- easily achievable, I think.