Jewbacca Posted August 23, 2017 Posted August 23, 2017 Fair point, but IMO there is a huge difference in crank quality across brands and product groups. Specifically strength. I have mashed many cranksets in my younger days. This was from mostly "street riding" aka drops to flat. Have bent and/or stripped the ISIS (or whatever interface) spline on the following:RPM DoradoTruvativ HusslefeltRaceFace North ShoreRaceFace RideSRAM S1200Lots of square taper Shimano's (Altus level or lower) My one friend has Lyne cranks and the chainring bent within a month. I still like the Lyne cranks and think they are a good deal. But not a patch on SLX. I am a Shimano fan boy.hahaha I too am a shimano fanboy... I have only shimano brakes and drive trains on all my bikes. Street/trials/DJ and to an extent proper DH will of course put far more strain on the cranks, but mainly due to big landings and torque from track starts and stops. See my above comment about the 99%ers.... I just find that cranks are one of the few things where the gap in modern outboard bearing spindle cranks is marginal compared to say, gear actuation or brake reliability. Either way, I would suggest Suidwes Boytjie could buy SLX/Lyne/XT and the only real difference would be initial price and the price of chainrings.
droo Posted August 23, 2017 Posted August 23, 2017 I do agree, but I have 1 question to everyone here. How do cranks break? If you don't mash the pedal threads? I have done a lot of bike riding in the last 25 years and have never ever 'broken' a set of cranks. I have put dings in the pedal ends and have had lock screws fail and needed to replace some bolts here or there but spindle cranks (not square taper that do wear and develop play) if installed correctly seem to go and go and go and go... I have a set of old SRAM cranks that have probably done 200 000 km and are still going strong despite looking incredibly worn and old... I have had over a year of hard riding with my Lyne cranks and they have been faultless. I think the percentages in the differences to most alu cranksets isn't even noticeable to anyone on regularly on this website. Despite weight, all mid range good quality cranks do the business just as well as another. Price vs weight or just price and part availability. The issue with the new Shimano cranksets is the squashed BCD... they kind of screw you on proprietary parts and charge a premium for they chainrings... I've bent a crank too. To be fair it was a pedal strike at 40km/h, but it bent. And ripped the pedal out of the thread. Definitely agree on Shimano's proprietary BCD though. Even better, did you know that the XTR is very slightly different to the others as well?
Jewbacca Posted August 23, 2017 Posted August 23, 2017 I've bent a crank too. To be fair it was a pedal strike at 40km/h, but it bent. And ripped the pedal out of the thread. Definitely agree on Shimano's proprietary BCD though. Even better, did you know that the XTR is very slightly different to the others as well?ha! I did actually and the fix for that is to put your crank bolts in backwards! The 104 bcd chainring then works.... (Female on the outside and male on the frame side... works like a charm!)
BaGearA Posted August 23, 2017 Posted August 23, 2017 Shimano should just relaunch the cranks with 104 bcd ( it honestly can't be that hard ) 1 week to for engineers to redesign , make 10 cranks and test them for A month Bam put into mass production ... granted many companies have made 96 bcd chainrings but 104 is here to stay
droo Posted August 23, 2017 Posted August 23, 2017 ha! I did actually and the fix for that is to put your crank bolts in backwards! The 104 bcd chainring then works.... (Female on the outside and male on the frame side... works like a charm!) I went a few steps further, got CSixx to make an XTR one which they've now added to their lineup. So now next time you replace you're not stuck with no choices. /hijack
Hairy Posted August 23, 2017 Posted August 23, 2017 I went a few steps further, got CSixx to make an XTR one which they've now added to their lineup. So now next time you replace you're not stuck with no choices. /hijackshowing off and name dropping .... good work sir!
Eddy Gordo Posted August 23, 2017 Posted August 23, 2017 if you think shimano bcd is strange, then how about my sram of 80/120. Tough choices for a chainring.
madbradd Posted August 23, 2017 Posted August 23, 2017 As far as I know the asymmetry on the chainring from Shimano is to do with stiffness. Makes sense when you think of the pedal stroke "peanut". It's interesting that they don't think it's necessary to go to a 30mm spindle though (think Hollowtech 3 - the marketing team's heads just exploded). But really..... why not a removable spider? Hell Rotor now do removable left and right crank arms and direct mount!
Andrew_Smith Posted August 23, 2017 Posted August 23, 2017 http://i.imgur.com/LCz0Hop.jpg My friend rocking his Lyne Pulse crank. Personally, love this more than my XT crank. If my XT crank decides to kick the bucket, I'll go with the Lyne Pulse.
Letum911 Posted August 23, 2017 Posted August 23, 2017 As far as I know the asymmetry on the chainring from Shimano is to do with stiffness. Makes sense when you think of the pedal stroke "peanut". It's interesting that they don't think it's necessary to go to a 30mm spindle though (think Hollowtech 3 - the marketing team's heads just exploded). But really..... why not a removable spider? Hell Rotor now do removable left and right crank arms and direct mount!Removable arms? Is this not basically going back to the isis system?
madbradd Posted August 23, 2017 Posted August 23, 2017 Removable arms? Is this not basically going back to the isis system?No, the crank comes as a spindle, left arm, right arm, chainring (with a new direct mount system called MAS and which looks like a center lock rotor). The BB is still the same as BB30, pressfit etc. And you can buy the spindle separately so the same crank can be used for boost, fatbike and standard bikes. The ISIS system had the spindle as part of the BB if I recall correctly. Check out the RRaptor and RHawk
droo Posted August 23, 2017 Posted August 23, 2017 showing off and name dropping .... good work sir! No point having SA's finest bike part CNC-er round the corner from your shop if you don't make use of the privilege...
Guest Posted August 23, 2017 Posted August 23, 2017 Have done a few thousand km's on my Lyme cranks and am loving them!
Hairy Posted August 23, 2017 Posted August 23, 2017 No point having SA's finest bike part CNC-er round the corner from your shop if you don't make use of the privilege...well played sir
Bizkit031 Posted August 23, 2017 Posted August 23, 2017 Shimano is not indestructible,was climbing up a hill when this happened.Take Lyne Pulse the new XT cranks paint is rubbish.
RiverInTheRoad Posted August 23, 2017 Posted August 23, 2017 Metal fatigue. Heavy use or just bad luck?
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