[Dog Welder]

I've got a Rhynolite to XT disk wheelset. When I bought it it came with presta valve holes. But now that I'm getting more into DH, the tubes to fit larger tires are all schreader valve. Is it advisable to drill out the presta hole to enlarge it? What size drill bit should i use? how can I prep the area so that spurs won't tear the valve? Thanks.

 

[Shibby]

drill away. use a bit that's close to the size of a schraeder valve rattail files also work.

just clean it out when you're done.

 

[edoz]

We use a tapered reamer at the bike shop. I've done road rims that way, so your Rhyno Lite will be fine. Go from the outside in (from the rimstrip in towards the hub)if you use one. A little fine sandpaper will do a good job on the edges.

 

[jodysbike]

I've always drilled my rims. I once got a flat in Hazard, KY while using presta valves. Ever try to buy a presta tube a Wal-Mart? You can't. Drilling is good but it takes time. You know find the bit, put it in, plug it up, clean it up, put it away.
With a tapered remer and a file you'll be done in like 2 minutes.

 

[Jihv Mabone]

If you go out to get a drill bit or reamer, be sure to pick up a deburring tool. They're pretty cheap and will easily remove all the burs left from the drilling. Otherwise you will have lots of fun with flats...but don't get spooked, it's an easy mod.

 

[HELLTACO]

Reams an' deburrin' tools? Da next ting ya knows chu gots ta heat treat da dang ting! Juss drill it out an' knock off da burr. It ain't dat bigga deal.

 

[Honeywell]

HELLTACO's got it! Just curious but did you buy the wheelset from Jenson? Because I got that same wheelset and I drilled mine out no problem, just be sure to use a couple bit sizes smaller than what you think the schraeder valve is. You can always make the hole bigger, but if you drill it to big to begin with it can be a problem.

 

[alpinedropout]

I just did it. A 5/16 bit works great.

 

[Joss DeWaele]

I like the 21/64 my self.

 

[gonefirefightin]

use a polishing cone on the top and bottom of the hole to get rid on any bad edges.

 

[Dog Welder]

Wow I'm still getting responses to a 8 year old thread...I sold those wheels off years ago!

 

[binary visions]

Holy crap... this thread was created before I even joined

 

[ultraNoob]

Wow I'm still getting responses to a 8 year old thread...I sold those wheels off years ago!

at least you know someone likes to recycle and knows how to use the search function