Swany05 Posted February 1, 2019 Posted February 1, 2019 So since August last year i have broken 4 spokes on my commuter which has some no name 26er rims with cup and cone hubs.Initially i just thought it was my riding style but ever since the third spoke went i made sure i dont hit any potholes or hop pavements etc. Got to park station on Wednesday afternoon and realized that another had broken. The wheel was completely out of true and some of the spokes have almost no tension. It must be worth mentioning that i had the wheels serviced at the end of last year and the hubs develop play after approx 100kms of riding. I could chalk this down to poorly built cheap no name components or fatigued metal but on my last road ride on my TCR three nipples managed to undo themselves. The wheels on the Giant are basically brand new and i have done just under 800kms on them. I understand these are factory built but surely they got to last a little longer than that. Im not sure if it means anything but i run the commuter at 36/18 ratio single speed and i weigh just south of 90kgs Now the advice i seek is whether or not to get the commuter wheels re-laced or to look for replacement quality built kit?
dirtypot Posted February 1, 2019 Posted February 1, 2019 On the commuter - metal fatigue. Spokes are just pieces of wire and they move all the time. Bend a piece of wire enough times and it'll snap. You're in for a new wheel / wheel rebuild. On cheap bikes its often cheaper to just get a new wheel rather than rebuilding. On the TCR - spoke nipples should never be coming loose. If they are then the tensions aren't correct. get it to your LBS for some love ASAP.
Swany05 Posted February 1, 2019 Author Posted February 1, 2019 On the commuter - metal fatigue. Spokes are just pieces of wire and they move all the time. Bend a piece of wire enough times and it'll snap. You're in for a new wheel / wheel rebuild. On cheap bikes its often cheaper to just get a new wheel rather than rebuilding. On the TCR - spoke nipples should never be coming loose. If they are then the tensions aren't correct. get it to your LBS for some love ASAP. Thanks man, the giant wheels will defo be looked at before i do another road ride. Im thinking new wheels on the commuter, id hate to spend on spokes and labor only for them to lose tension again after a couple months. That being said i am looking at a rather large upgrade to a better/right tool for the job bike so this bike may just become a shop ride.
Goodbadugly Posted February 1, 2019 Posted February 1, 2019 Straight gauge spokes break.26er wheels are cheaper to buy second hand than re-lacing with new spokes
David Marshall Posted February 1, 2019 Posted February 1, 2019 On the commuter just replace the wheels. If you want anything to last go for sealed bearing hubs and plenty of spokes. On the giant wheels the spokes loosening could be for a number of reasons. I'll hazard a guess that they loosened on the radial spoked front wheel or the non drive side at the back. I'll also bet that they are less than 32 spokes on the wheels. A wheel with 32 spokes 3X with brass nipples tensioned between 100 and 120 kg per spoke will not have the nipples loosen. When you cut the number of spokes and number of crosses you start running the risk of nipples loosening. These cool looking "light" wheels have led to the invention of highly engineered "pro lock - tapered - plastic inserted - LocTite and more -nipples". These are necessary simply because you get an increased dynamic load on the wheel and can't get enough tension on the rim with the reduced spoke number to compensate for this. Spokes breaking is another chapter.
BikeisLife Posted February 1, 2019 Posted February 1, 2019 I've got a set of 26" wheels you can have. The back hub only allows a rim brake though. Came off a Cannondale F8000 from back in the day.
Swany05 Posted February 1, 2019 Author Posted February 1, 2019 I've got a set of 26" wheels you can have. The back hub only allows a rim brake though. Came off a Cannondale F8000 from back in the day.Thanks for the offer man, but would need disks back and front
Swany05 Posted February 1, 2019 Author Posted February 1, 2019 On the commuter just replace the wheels. If you want anything to last go for sealed bearing hubs and plenty of spokes. On the giant wheels the spokes loosening could be for a number of reasons. I'll hazard a guess that they loosened on the radial spoked front wheel or the non drive side at the back. I'll also bet that they are less than 32 spokes on the wheels. A wheel with 32 spokes 3X with brass nipples tensioned between 100 and 120 kg per spoke will not have the nipples loosen. When you cut the number of spokes and number of crosses you start running the risk of nipples loosening. These cool looking "light" wheels have led to the invention of highly engineered "pro lock - tapered - plastic inserted - LocTite and more -nipples". These are necessary simply because you get an increased dynamic load on the wheel and can't get enough tension on the rim with the reduced spoke number to compensate for this. Spokes breaking is another chapter. What you say makes sense. yup non drive side rear wheel. 28 spoke if i am not mistaken. I will get this wheel rebuilt for now till i can afford an upgrade set. also pm sent
nick_the_wheelbuilder Posted February 1, 2019 Posted February 1, 2019 Those 26er wheels will need a rebuild with new spokes and nipples, and if the rims are still round and straight, this should be a permanent solution and should last a good long time. Cup and Cone hubs simply need proper adjustment and they should run well too, but do need regular maintenance if ridden often. To give you an idea, a wheel set rebuild with new nipples and spokes will cost in the region of around R2000 for labour and parts. You could probably find a new set of previously-loved wheels for that much if you tried. As Dave said above, the spokes loosening on the road wheels could be a design issue, but definitely worth checking by someone who knows how to use a spoke wrench and spoke tension meter.
Robbie Stewart Posted March 3, 2019 Posted March 3, 2019 This morning as I was ascending Tiekiedraai towards Durbanville, I heard a loud "ping" at the back. I checked to see if I could keep riding, and saw nothing out of the ordinary. (I was still riding while checking - I know, I know...) Anyway, just past Hillcrest's gate (maybe 1.5 km later), I hear a spoke rattling around. I stopped and tried to get it to hold against another spoke, remounted, and took off. 2 crank revolutions later, and I hear a mighty bang, and come to a grinding halt. Spoke has now managed to get impaled into the derailleur (at a quick glance, this seems to be okay), and pulled another spoke, nipple and all out of the rim.Rims are Roval 29CM inner width, standard issue with my Camber. Is this as bad as I seem to think it is?
dasilvarsa Posted March 3, 2019 Posted March 3, 2019 NoJust Replace 2 Spokes and Nipples.I do it Myself @ R25 a spoke but not Expensive @ LBS to supply and fit.
droo Posted March 4, 2019 Posted March 4, 2019 This morning as I was ascending Tiekiedraai towards Durbanville, I heard a loud "ping" at the back. I checked to see if I could keep riding, and saw nothing out of the ordinary. (I was still riding while checking - I know, I know...) Anyway, just past Hillcrest's gate (maybe 1.5 km later), I hear a spoke rattling around. I stopped and tried to get it to hold against another spoke, remounted, and took off. 2 crank revolutions later, and I hear a mighty bang, and come to a grinding halt. Spoke has now managed to get impaled into the derailleur (at a quick glance, this seems to be okay), and pulled another spoke, nipple and all out of the rim. Rims are Roval 29CM inner width, standard issue with my Camber. Is this as bad as I seem to think it is? New rim sadly, and the rebuild that goes with it.
Butterbean Posted March 4, 2019 Posted March 4, 2019 I know it may not be the case for mtb, but I popped a spoke on my road bike and used a little bit of tape from the bars to tie up the loose spoke until we stopped... I also keep some teensy cable ties in my mtb bars, with the bar ends stopping them... Could work in a pinch to keep a loose spoke out of everything else!
CAAD4 Posted March 4, 2019 Posted March 4, 2019 New rim sadly, and the rebuild that goes with it.Sorry to hear. Another Roval p. o. s. Four of my Mates who own Spaz bikes have had Roval issues. With them it was hubs. Now they ride Hope and never look back.
Robbie Stewart Posted March 4, 2019 Posted March 4, 2019 Sorry to hear. Another Roval p. o. s. Four of my Mates who own Spaz bikes have had Roval issues. With them it was hubs. Now they ride Hope and never look back.I had my rear hub replaced twice in 2 months. I suspect this may be the reason for the popped spokes.
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