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Road Cycling

Discussion in 'Pedal Powered' started by FrenchTart, Jun 29, 2016.

  1. Roady

    Sgarrista

    Joined: Oct 18, 2002

    Posts: 7,791

    Location: Hereford

    Just came across a mention of Hope RX4 calipers elsewhere and realised they do a Flat mount and a Post mount, while also being compatible with Shimano hydraulic systems... Could be a solution?

    4 Piston so should be good, but think/expect they take different pads to Shimano so unsure how they directly compare when it comes to power on the road. Worth researching/reading up on how they compare.

    Of course you get colour options with Hope, so you could also switch to their coloured road rotors. Proper winter bike bling! :D
     
  2. touch

    Capodecina

    Joined: Oct 28, 2006

    Posts: 11,400

    Location: Sufferlandria

    Yes, you're right. I had thought the rules were clear but I can't see anything obvious about it now. Seems like it's more of a messy situation than I thought.
     
  3. Roady

    Sgarrista

    Joined: Oct 18, 2002

    Posts: 7,791

    Location: Hereford

    Guys. Headset bearings. I need to replace my lower one (so will do both) but last time I looked it was so marked I couldn't read the side of it for the numbers. That was back in the spring and I'd left it (just cleaned it out and regreased) but after the recent rain it's now feeling rougher again so really overdue changing. The Specialized site is next to useless when it comes for parts/identifying etc and I'd rather not buy from my LBS (as they'll have the Specialized 'branded' ones at Specialized prices) but how can I identify it from the actual bearings sizes if I get mine out and measure it? I'm fairly sure it'll be a tapered one but how can you get the exact right one...

    @Saytan @Jonny ///M any tips on identifying?

    @xdcx for President! That would sort them all out! :D
     
  4. Saytan

    Mobster

    Joined: Oct 18, 2002

    Posts: 4,504

  5. Roady

    Sgarrista

    Joined: Oct 18, 2002

    Posts: 7,791

    Location: Hereford

    Excellent, thanks!

    Upper Headset Fit
    • IS 41/28.6
    Lower Headset Fit
    • IS 47/33
    Helps... So looking on Park (recalled they had a list of the different types and what was interchangeable when reading up on S.H.I.S.) my top is 1/8" / 1/8" threaded and my lower is 1/4" / 1/4" threaded

    So I've got a 1/8" to 1/4" threaded headset. Fairly standard as hoped! Everything these days is a 45° contact face/edge so shouldn't need to worry about that (as I had before). Still not 100% sure what the threaded bit is about... ;)
     
  6. Saytan

    Mobster

    Joined: Oct 18, 2002

    Posts: 4,504

    the threaded part refers to the good old days when stuff had threads. You dont have a threaded setup - you have an IS41/28.6 top and IS47/33 bottom
     
  7. kiteloopy

    Mobster

    Joined: Apr 13, 2008

    Posts: 2,644

    Location: Notts / Reading

    Amazing!
    sadly the disc's are 6 bolt only and im on CL but cheers for letting me know.
     
  8. Roady

    Sgarrista

    Joined: Oct 18, 2002

    Posts: 7,791

    Location: Hereford

    Yeah but not many places list the IS for any/all of their bearings... ;)

    Although nice list of the Hope ones here, my lower isn't listed. I'm also not paying £35 just for the top bearing! :o

    https://www.wiggle.co.uk/shimano-6-bolt-to-centrelock-rotor-hub-adapter-rtad05 *cough*

    More cost I know, there are probably cheaper alternatives around than Shimano too. Although weirdly I don't see any listed on Hope's website.
     
  9. SoliD

    Capodecina

    Joined: Feb 25, 2004

    Posts: 14,845

    Location: Portsmouth

    You can get these off ebay for about 2.50 for a pair if you can wait.
     
  10. Saytan

    Mobster

    Joined: Oct 18, 2002

    Posts: 4,504


    Decent headset bearings should last many many years regardless of conditions. You can also get away with a lot less smoothness in a headset than in a hub or BB.
     
  11. Roady

    Sgarrista

    Joined: Oct 18, 2002

    Posts: 7,791

    Location: Hereford

    I really wouldn't put the Specialized supplied bearings in the 'decent' category. Any brands or sites to grab them from you'd suggest? My usual place for BB/wheel bearings (currently NTN from Hambini) doesn't seem to do headsets (nor do NTN or SKF the usual brands I would prefer). Regarding smoothness, I know and I've continued with it feeling rough for 12+ months already lol

    I don't think it'll actually seize (being a headset) but the rusty gunk leaking out over the lacquer on my fork anytime I stop after riding in heavy rain is beginning to make me sad. Think my main 'problem' is riding all weathers and while at work my bike isn't under cover so it sits in the rain on the wet days and doesn't get a chance to dry out until it gets home.
     
    Last edited: Oct 16, 2019
  12. Saytan

    Mobster

    Joined: Oct 18, 2002

    Posts: 4,504

    yeah, leaving it out in the rain all day will not help.

    Headset bearings are in headset sizes so tend to only come from headset manufacturers i'm afraid. I'd whack a load of marine grease in the cups - it's got good water resistance as the name implies
     
  13. SoliD

    Capodecina

    Joined: Feb 25, 2004

    Posts: 14,845

    Location: Portsmouth

    Parts Check please gents.

    Upgrading my Inflite to GRX Di2 1x11, pretty sure I just need the following?

    RX815 Shifters
    RX810 Calipers
    RX815 or RX817 Rear Derailleur
    BTDN110 Battery
    EW90A or B Junction Box
    3 x Di2 Cables (Shifter to Junction Box, Battery to Junction Box, Rear Derailleur to Junction Box)
     
  14. XE11

    Gangster

    Joined: Sep 26, 2013

    Posts: 326

    Location: London

    i dont think the hydraulic hoses are included in the shiftrs/calipers any more.
     
  15. SoliD

    Capodecina

    Joined: Feb 25, 2004

    Posts: 14,845

    Location: Portsmouth

    Ah yeah, I'd buy them as one package so would come with the hoses.
     
  16. Roady

    Sgarrista

    Joined: Oct 18, 2002

    Posts: 7,791

    Location: Hereford

    Unfortunately don't have any choice where I leave it, only 1 bike rack. Thankfully its right next to a building so is semi-shielded but not from constant rain.

    Any manufacturers you'd recommend? Lots of Crane creek around and FSA mentioned which I expect are pretty poor (as they're cheap). Enduro where always considered a good middle range for BB's and they do seem to do some headsets too.

    Last spring when I stripped it I did as full a clean of the bearing internals as I could and put in the Finish Line Premium grease I generally use. The 'Morgan Blue Aquaproof paste' which is the real waterproof stuff I use I think is a little too thick for bearing internals. I do tend to use it more for assembly than lubrication. Fairly sure I would've put that in the cups.

    You missed a few things:
    • 10 spare derailleur hangers
    • 3 spare rear derailleurs
    :p;)
     
  17. SoliD

    Capodecina

    Joined: Feb 25, 2004

    Posts: 14,845

    Location: Portsmouth

    I get this abuse from my club mates, don't need it on here too! :D
     
  18. #Chri5#

    Soldato

    Joined: Feb 27, 2003

    Posts: 6,904

    Location: Shropshire

    Helpful as ever Roady - ta! The guards will go on and stay on as it's a commute / hack, so time spent getting a good fit with minimal rattles is well spent.
     
    Last edited: Oct 16, 2019
  19. SoliD

    Capodecina

    Joined: Feb 25, 2004

    Posts: 14,845

    Location: Portsmouth

    I'm converted to mantel. Ordered a couple of bits on Saturday and Monday and they turned up today. Think unless I'm in a major rush I will be going to them in future.
     
  20. TheBrooder

    Mobster

    Joined: Jan 8, 2007

    Posts: 3,090

    Location: Cognac, France

    I'm looking for a cheap 2nd set of wheels for my triban rc520. Even though my bike takes 6-bolt, if I buy a set of centre lock wheels with the hubs & rotors will it still fit?!

    Is there anything else I need to look out for other than 11-speed compatability?