RLucas Posted July 25, 2019 Share Why you paying school fees?It's my first MTB, so there's a lot I didn't know about old vs newer tech, e.g. straight vs tapered steerer tubes, QR vs thru-axle, what's more available in the market (new or used) and what to look out for when buying a 2nd-hand MTB (esp a cheapie). It's been a good learning experience though... researching and asking around... repairing and upgrading what I can. I've tried to do everything on a tight budget, but things add up rather quicklyTons of fun though!... at least until I have to explain the budget to the wife Link to comment Share on other sites More sharing options...
Alouette3 Posted July 25, 2019 Share Bubble is rock hard, not moving around when pushing against it.Take a sharp knife and cut a small strip of the sticker off along the weld. That will sort out any doubts Louwtjie86 1 Link to comment Share on other sites More sharing options...
slickjay007 Posted July 25, 2019 Share Rims are consumables - replace. Really?? Link to comment Share on other sites More sharing options...
Longbarn Killer Posted July 25, 2019 Share Rims are cheap, rather replace. I'm also no expert on wheels or welding, but won't welding cause an imbalance in the wheel? Link to comment Share on other sites More sharing options...
Louwtjie86 Posted July 25, 2019 Share Jip, removed decal on the one side and it was indeed dried sealant, will keep an eye on the joint. Link to comment Share on other sites More sharing options...
David Marshall Posted July 25, 2019 Share Ride it until it is shot. As Jobst Brandt puts it in "the Bicycle Wheel" it does not really matter if the rim is plugged, pinned, welded or simply lined up. RIM JOINTRims are formed from straight material that is rolled into a hoop and joined.Many solid-section rims have welded joints, as do some hollow aluminum rims.For hollow rims, however, welding is not only difficult and expensive, but alsounnecessary because the joint as well as the rest of the rim of a properly tensionedwheel is always under compression. Most hollow rims are joined with a close-fitting plug. Welding generally produces poorer alignment than a plug joint,and it has no strength advantage because there is no tension at the joint, onlycompression. When unspoked, plug joined rims can be pulled apart by hand ifthe insert does not fit too tight.Plug joints sometimes separate in a crash, but only after the wheel has collapsedand has lost its spoke tension, and then only if the destructive force is near thejoint. In fact, a wheel could be built from a rim of 36 segments not held togetherat all except during assembly. Such a wheel would perform normally except thatif several adjacent spokes were cut, the rim would explode into 36 pieces,whereas a one-piece rim would develop a radial hump.A concern has been expressed that, unless the two spokes adjacent to the jointcross on the way to the hub, the joint will separate in use. This concern ignoresthat the tension of all the spokes is supported by the rim as an arch incompression, a load of about a half ton for a 36-spoke wheel. To facilitateengaging a tire pump, wheels are usually spoked so that the spokes adjacent tothe valve stem "pull apart" (are parallel). With this standard arrangement thespoke pair at the rim joint does not cross in radial wheels or those whose numberof spokes is evenly divisible by eight (24, 32, 40, 48). That these spokes do notcross has no effect on the integrity of the rim joint. solty 1 Link to comment Share on other sites More sharing options...
MudLark Posted July 25, 2019 Share Jip, removed decal on the one side and it was indeed dried sealant, will keep an eye on the joint.The wheel is fine. You're not going to have a problem. Ride and be happy. Hollow butt joined rims are (usually) incredibly strong. Sometimes it takes a little bit of effort to get the joint sealed the first time you go tubeless with them but that's about it. FWIW, I have a set of enduro rims built this way. They're practically indestructible. Link to comment Share on other sites More sharing options...
Louwtjie86 Posted July 25, 2019 Share The wheel is fine. You're not going to have a problem. Ride and be happy. Hollow butt joined rims are (usually) incredibly strong. Sometimes it takes a little bit of effort to get the joint sealed the first time you go tubeless with them but that's about it. FWIW, I have a set of enduro rims built this way. They're practically indestructible.Cool, thank you very much for the input and advice. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now