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Cycling log - random events in the day of a cyclist II

Discussion in 'off topic' started by PhilofCas, Jun 13, 2020.

  1. SteveG

    SteveG pfm Member

    I stick to Shimano for MTB drivetrain stuff as it helps with compatibility so I've no personal experience with their latest stuff. However going by posts on the mountain bike forum I'm on (singletrackworld) it does sound like some of the current SRAM stuff is a bit shite, as lots of the guys there are switching back to Shimano.

    Other than a fair few of their cassette's the only SRAM stuff I've had was on a road bike with a Rival groupset and that never missed a beat in the 10 years I had it.
     
  2. PhilofCas

    PhilofCas pfm Member

    Yes, son runs out of gears at the top end too (his legs are like Hoy’s!). I think 11/51 36 sounds a good combo, didn’t know they did 51’s (you learn something new...). I’m pretty much OK with a 32, as I’ve got a 10, surprising how much 1 tooth makes :). Both our bikes are 1x and love them, though I was forced to go out on my old 26” 3x 7 speed MTB late last year and in the high gears it flew! A good 3x can still do it, like I say, it’s a 7 speed, but the spread of gears is brilliant, even compared to latest 12 speed stuff. (I don’t miss the messing about with the front shifter though). A bit rambling but I’m sure you’ll follow :D
     
  3. Woodface

    Woodface pfm Member

    Bought 10 inner tubes today from Planet X.
     
  4. SteveG

    SteveG pfm Member

    I think the 11-51 11-speed cassette hasn't been available for long, although similar ones have been available for 12-speed for a while I think. It's a pretty good option for going 1x11 if you want a decent range - as long as the bike has clearance for something like a 36.

    My "best" mountain bike is still on 3x9 as I'm struggling to see a 1x option that'd work well for it. Something like a 36t up front and a 10-51 would be ok but I'd still lose something at the low and and, more importantly at the high end. Any 11-speed option would be worse due to not having an option for a cassette with a 10t. It'd probably be ok though, but would be expensive to do because as well as the 12 speed cassette, shifter and rear mech I'd also need brake levers (it's on dual-control brake/shifters at the moment but I could re-use the calipers) and also a new rear wheel. That bike has an XTR drivetrain and brakes as well, plus American Classic wheels, so likely wouldn't lose any weight either unless I also went XTR for the new stuff. I might go 2x11 with it though, but as I haven't tried an XC 2x drivetrain before (although I've run 2x9 on trail bikes) I'm thinking I'll try it out on my "spares" bike first and see how that works.
     
    PhilofCas likes this.
  5. bor

    bor queue jumper

    I've recently gone from a 34t to a 36t 10-42 on my 29er.

    Frankly, it feels like I've bitten off more than I can chew, but it is very flat here, so I think it will be OK.

    It also seems to have introduced some noticeable pedal "bob" which I wasn't expecting, and I run the rear damper with a maximum of 20% sag, so already fairly stiff.
     
  6. calorgas

    calorgas Ratty bumpkin

    It's a Trek bike so mostly SRAM and Bontrager bits so I guess I'll stick with SRAM so I don't have to change anything else, but may do a bit of googling and perhaps move up the food chain a bit.
     
  7. bor

    bor queue jumper

    Have you checked the B-screw position ?

    The two big shifting problems I've had with my SRAM equipped bike I eventually tracked down to the B-screw position.

    Very sensitive apparently. There is a perspex stencil type gauge from SRAM to set the distance between the cassette and the pulley wheels. Needs to be done with your weight on the bike if it is an FS because the position changes as the suspension compresses.

    If not that, then the usual checks on the mech hanger - are the screws tight, is it bent slightly etc.
     
  8. calorgas

    calorgas Ratty bumpkin

    Yes I have tried adjusting the b tension screw, but not used a gauge. So before anything else perhaps I should get hold of one of those and have another go. Thanks!
     
  9. sq225917

    sq225917 Bit of this, bit of that

    Bor, changing front ring size affects your antisquat quite notably on certain fs bikes.

    36x 11-42, thats a XC gear spread if ever there was.
     
  10. SteveG

    SteveG pfm Member

    All my bikes are 26" wheels so the effect on those would be lower than with a mountain bike with those clown wheels on (I'm very behind the times on this stuff!). With 36t and 10-42 the high gearing is good but I'd be wanting more at the low end as the lowest gear is still pretty high, although probably ok if you don't need to worry too much about hills. With the hills near where I live then with a 10-42 cassette on a 29er I'd probably be going the other way and using a 30t chainring as that looks like it gives a reasonable spread of gears.
     
  11. sq225917

    sq225917 Bit of this, bit of that

    I run 34 10-42 on my 26" mtb, very occasionally its too much for climbing super trick technical stuff, but with 170mm on the front and 150mm on the back it ain't built for that. Also, who the hell is pedalling at 30mph plus?
     
  12. NeilR

    NeilR pfm Member

    Just sold my 10 year old Genesis Vapour cyclocross bike on facebook marketplace. I asked for CHF100 as the thing cost £850 in the UK at the time and I could not imagine that many people still want a bike with cantilever brakes.

    however, i could have sold the thing about 10 times over and was bombarded with messages from interested buyers. I probably should have asked at least twice the price, but hey ho. In the end i sold it to a young lad who is just getting into cycling so hopefully it will give him a chance to ride a decent bike for not much outlay.

    Now i am back down to two bikes. Didn’t really need a gravel, road and a cyclocross bike in the garage.
     
  13. Jono_13

    Jono_13 Duffer

  14. sq225917

    sq225917 Bit of this, bit of that

    I just use a straight sided 750ml bottle with a plastic bag in it.
     
  15. SteveG

    SteveG pfm Member

    Me - when I'm chasing a KOM!
     
  16. SteveG

    SteveG pfm Member

    I have something similar on my road bikes. I have one on each though, as I'm old and forgetful enough that if the stuff isn't always on the bike I'd likely forget it. Each of the road bikes has a mini-pump attached to one of the bottle cage mounts and the little seat pack (not so little in the case of the one on my Roubaix) has a couple of spare tubes, tyre levers, a puncture repair outfit, a mini-tool with a chain breaker and a spare chain link. I also have a small lock that goes in there if I'm out on a club ride with a cafe stop. The packs aren't the prettiest but they are useful.

    [​IMG]
     
    Jono_13 likes this.
  17. SteveG

    SteveG pfm Member

    I put a speculative Ebay bid in for £90 for a 26" rear wheel with an 8-speed Alfine hub gear, built on a Mavic X317 rim. I was pleasantly surprised to win it at that price and I'm thinking that, with my On-One Inbred frame having slot dropouts, it'll get changed from it's current 1x10 configuration to an Alfine one and become my winter mountain bike. You can't get quite the gearing range of a 1x10 or 1x11 set-up but you can get a useable range and it's a hell of a lot better than a singlespeed!
     
  18. NeilR

    NeilR pfm Member

    I have basic the same as you on each bike, but even carry a spare derailleur hanger on my gravel bike.

    Having once been stuck halfway up a big mountain pass with a broken spoke and a wheel so badly pringle shaped that it would not clear the chainstay meaning i had to carry the bike down the pass has convinced me to always have the right equipment to deal with a mechanical in the middle of nowhere!
     
  19. SteveG

    SteveG pfm Member

    I've had something similar happen to me as well and it's one of the reasons I carry the chain tool and spare joining link as it means I can turn the bike into a singlespeed to get me home.
     
  20. sq225917

    sq225917 Bit of this, bit of that

    I've never snapped a chain, not on the road or on my mtb. But I always carry a spoke key...
     

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