Slowbee Posted June 26, 2015 Posted June 26, 2015 Right, so the Mrs runs a 650b giant with stock standard giant pcxc2. But 2 weeks in and I can see the need for an upgrade. What are these chaps like in comparison ? https://www.bikehub.co.za/classifieds/125247-syncross-27-wheelset/ Need a bit of guidance here please lads. of course then there are these :https://www.bikehub.co.za/classifieds/131614-rapid%C3%A9-r27-650b-wheels-r3690-free-delivery/#commentsStart
nick_the_wheelbuilder Posted June 26, 2015 Posted June 26, 2015 Can't comment on those wheels, but wheels are the best upgrade. Some things I'd look at: Rims wider than 20mm (for better traction, ability to run lower pressures) and tubeless ready inner profileQuality hubs that are easy to service.J-bend spokes for ease of maintenance (My personal hate is expensive straight-pull spokes) So something like WTB KOM i23 rims on Hope hubs built with double butted spokes and brass nipples.
fanievb Posted June 26, 2015 Posted June 26, 2015 I got my wife these http://www.tri-cycles.net/wheels/mountain-bike/edge-design-xlr-650b/awesome wheels, light and the spin forever.All I did was clean the excess grease out that gets added in the factory.
Slowbee Posted June 26, 2015 Author Posted June 26, 2015 Thanks The problem is figuring the hub story out. Its like comparing beer and wine.
Slowbee Posted June 26, 2015 Author Posted June 26, 2015 I got my wife these http://www.tri-cycles.net/wheels/mountain-bike/edge-design-xlr-650b/ awesome wheels, light and the spin forever. All I did was clean the excess grease out that gets added in the factory.i took her bike for a ride. there seems to be a big delay in when you put pressure on the crank from a standing start to the actually hub engaging (or is that cog). But it just does not seem good.
fanievb Posted June 26, 2015 Posted June 26, 2015 i took her bike for a ride. there seems to be a big delay in when you put pressure on the crank from a standing start to the actually hub engaging (or is that cog). But it just does not seem good. warranty? sounds like a faulty freewheel body. (but I'm no expert)
nick_the_wheelbuilder Posted June 26, 2015 Posted June 26, 2015 i took her bike for a ride. there seems to be a big delay in when you put pressure on the crank from a standing start to the actually hub engaging (or is that cog). But it just does not seem good. It depends on the hub's freewheel. Some hubs only have 12 or so engagement points and some have up to 72 or more, making the engagement a LOT faster. If you're used to riding a hub like Hope and then ride a lower end wheel like Shimano Deore etc you'll notice a HUGE difference and it will feel very strange and almost as if the hub is faulty.
Captain Fastbastard Mayhem Posted June 26, 2015 Posted June 26, 2015 i took her bike for a ride. there seems to be a big delay in when you put pressure on the crank from a standing start to the actually hub engaging (or is that cog). But it just does not seem good. how many degrees of movement is a "big delay"? As wheel builder says, it may just be that the hub has fewer engagement points than you're used to, and as such it feels as if it takes a while to get the pawls engaged, and power down - this only happens when you're backpedalling and re-engaging the free-hub, like in technical climbs where you want to rotate pedals slightly... won't ever be an issue when you're riding and NOT back-pedalling. It'll also come in when you re-engage the pedalling after free-wheeling for a while.
Slowbee Posted June 26, 2015 Author Posted June 26, 2015 starting from a standing position with the cranks at the 12 position. I use full power to try and lift the front wheel up (wheelie so to speak). It takes till at least the 4 o'clock position till you hear the thunk and feel the power start to pull. is this a wheelset issue, a faulty wheelset issue or just me ?
JXV Posted June 26, 2015 Posted June 26, 2015 4 o clock position from 12 means 120 degrees of free play. Now, depending on gear ratio this translates to anything from 4 or less engagement points in a full wheel rotation! Even the most basic hubs have more than this. If I am understanding your description correctly then something is definitely not right there!
Captain Fastbastard Mayhem Posted June 26, 2015 Posted June 26, 2015 Agreed with JXV. Somethings not kosher
Slowbee Posted June 26, 2015 Author Posted June 26, 2015 just tried it again. man this is weird! and I dont know if it is the wheelset. tried it with different gears, same thing. but if you go slow you can feel the engagement point
Captain Fastbastard Mayhem Posted June 26, 2015 Posted June 26, 2015 Sounds like a duff freehub. Very strange. Take it to the shop...
JXV Posted June 26, 2015 Posted June 26, 2015 Various issues can cause the pawls not to engage properly. This can be as simple as dried out grease or incorrect assembly. I would suggest taking it back to the seller....or get your LBS to check it out if returning to seller is not an option.
Jonkie Posted June 26, 2015 Posted June 26, 2015 just tried it again. man this is weird! and I dont know if it is the wheelset. tried it with different gears, same thing. but if you go slow you can feel the engagement point Hi,I have the same set of wheels and don't have any problem with engagement. I think you have a faulty freebody or too much grease in the freebody.
David Marshall Posted June 26, 2015 Posted June 26, 2015 Back to the wheel choice. I would go for the Rapide. Kiwi can build a wheel and he only charges about R150 for labour. That is less than a Chinese sweat shop. Me thinks this is because he already has a mark up on the components - I will test him by dropping off my components and see if he will build at that price for me! My costing for that wheelset would be R4000. I prefer them because of the stock standard J bend spokes and enough of them. Also good support if anything goes wrong.
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