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Giant Propel Fork installation (and extra parts)

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Giant Propel Fork installation (and extra parts)

Old 11-08-17, 07:11 AM
  #1  
JimShep
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Giant Propel Fork installation (and extra parts)

I bought a bike online and the fork needs to be installed, I think I have it done correctly but I want to make sure. I have read the instructions and searched online but I can't figure out where the extra 'mystery part' is supposed to go.


It is a Giant propel Advance ISP with a full carbon fork. Based on the research I have done it has an integrated crown race so I shouldn't need one. Starting from the bottom I have
  • Lower Bearing (bevel up)
    Through head tube
    Upper Bearing (bevel down)
  • Centering sleeve
  • Dust Cap
  • Thin metal washer (pictured below)
  • spacers
  • Stem
  • spacers
  • top cap


I tried putting the thin metal washer under the dust cap but then there is a small gap between the dust cap and frame. Also, I have a mystery part, a washer with a lip on it. It fits on the top of the stem but will not slide all the way down (It is a tapered fork)


Bonus question – I have extra parts pictured below. I am pretty sure the thing with the metal 'hoses' is for mechanical installation (I have Di2). I think the clips are for the di2 battery holder (I have a holder for an aero seat tube) The gray tube with the three pointed star is a complete mystery though?


On my computer you have to scroll sideways to see the whole image, is there a better way to do it? At least you get enough detail. (edit - The preview was a mess but now that I posted it it looks better)



Thanks in advance...








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Old 11-08-17, 08:13 AM
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wschruba 
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1) your initial thought that the thin spacer goes under the top cover is correct; it is a preload spacer, designed to take up excess room that the headset assembly can't deal with (inset bearings, with a raised lip, for instance). Not all frames require them. If you can reach adequate preload with no top cover binding, it is unnecessary.

2a,b) that ridged spacer should fit with the 3-spoke top cap, if memory serves (have not worked on a Giant for some years...). The sleeve/top cap is an ultralight assembly for preloading, as opposed to an expanding nut. It would be epoxied in after your stem height was arrived at.

3) can't help with the large guide, as that came after I worked with Giants. Methinks, though, that it replaces the frame fitting on the Propel just behind the stem.
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Old 11-10-17, 08:40 PM
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I had a Propel right up until the point I wrecked and cracked the top tube in three places. Having replaced the headset bearings in mine, from what I'm seeing/reading, you have assembled it correctly with the exception that that thin spacer I believe should go under what you have labeled the "dust cap" (I've always heard it as "top cover").

As for the extra parts, the plastic tubes with the flat wound wire around it is in fact for mechanical shifting. Those go down the downtube from the top tube and the plastic runs all the way past the BB for both front and rear. I believe that's a Propel exclusive part.

I believe the clips are for Di2 battery, however when I switched mine to Di2, I used the rubber expander that goes inside the seat post.

Going to have to assume Wschruba is correct on the top cap/sleeve as I had an Advanced not an SL, so I didn't get anything that fancy.
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Old 11-13-17, 10:48 PM
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JimShep
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Thanks for the replies, glad to hear I have it installed correctly.

Headset preload is how tight the bolt in the top cap is? With it snug everything seems fine.

There is currently an expanding nut in the uncut steer tube. When I am ready to cut it I use the gray tube instead and save a couple of grams? Can I buy the epoxy and do it myself? Does the three pointed star get used in place of the top cap? I don't think I have ever seen a bike like that.

Last edited by JimShep; 11-13-17 at 11:08 PM.
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