NVWOCI WVS Posted January 31, 2008 Report Share Posted January 31, 2008 after all this talk of people wanting a hope mod hub i've decided to make one! it's going to be a hope mono with 116mm spacing...decided you dont need the wide freehub body (obviously going to be single speed on a mod!) so im taking 19mm off that side, then 19mm off the axel and turning the end of the axle so the spacer fits on anyone see a reason for it not to work?has it been done before?heres a pic to illustrate my master plan slightly better... Quote Link to comment Share on other sites More sharing options...
Mark W Posted January 31, 2008 Report Share Posted January 31, 2008 Edd Potts did one a while back, I seem to remember it worked fine. Good luck with it Quote Link to comment Share on other sites More sharing options...
Ladd Posted January 31, 2008 Report Share Posted January 31, 2008 Hmm it should work are you going to put the bearings back in once cut down or are there another set were you cut up to ? Quote Link to comment Share on other sites More sharing options...
Fishy Posted January 31, 2008 Report Share Posted January 31, 2008 Thread for the freebodys lock ring? Quote Link to comment Share on other sites More sharing options...
basher Posted January 31, 2008 Report Share Posted January 31, 2008 Sounds good, but the pickups are shite on that hub if i remember and skip. There not amazing for trials Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted January 31, 2008 Author Report Share Posted January 31, 2008 (edited) Hmm it should work are you going to put the bearings back in once cut down or are there another set were you cut up to ?there are two sets of bearings in the freehub body, so if the freehub body is so much narrower, it should run fine on just the one set (i hope!)Thread for the freebodys lock ring?cutting a thread isnt too much of a problem Sounds good, but the pickups are shite on that hub if i remember and skip. There not amazing for trials hope monos arent too bad, similar to the xc minus the disc mounts...back in the day everyone used them! the proIII replaced the mono and the proII replaced the XC Edited January 31, 2008 by samdoman Quote Link to comment Share on other sites More sharing options...
craigjames Posted January 31, 2008 Report Share Posted January 31, 2008 sounds good, will be fine running on the one bearing on the drive side; its only got to support a lot shorter axle.slightly off topic but is the ratchet ring ona pro2 trials the same internal/external diameter as the ratchet ring on a normal pro2? was thinking about upgrading the pickup on my dh bikes wheels..... Quote Link to comment Share on other sites More sharing options...
Muel Posted January 31, 2008 Report Share Posted January 31, 2008 It can be done using a Pro 2 Trials and a Pro 2 XC body I think, with some more turning and fiddling.I think the Pro 2 Trials are 6 speed? Not certain though. Quote Link to comment Share on other sites More sharing options...
dave85 Posted January 31, 2008 Report Share Posted January 31, 2008 Anything upto 20mm taken off the freehub body is fine, beyond that you will find there isnt enough space inside the freehub body to thread properly. The freehub will require extra support if you want the bearing to last, I made a bronze bush to take the place of the alloy spacer, a nice running fit on the bore in the freehub, keeps everything in line. Not a lot else to it really, those generation Hope hubs are agriculturally robust and will stand a lot of abuse. Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted January 31, 2008 Author Report Share Posted January 31, 2008 Anything upto 20mm taken off the freehub body is fine, beyond that you will find there isnt enough space inside the freehub body to thread properly. The freehub will require extra support if you want the bearing to last, I made a bronze bush to take the place of the alloy spacer, a nice running fit on the bore in the freehub, keeps everything in line. Not a lot else to it really, those generation Hope hubs are agriculturally robust and will stand a lot of abuse. how did the bush fit? will one set of bearing not do the job then? Quote Link to comment Share on other sites More sharing options...
Monty99 Posted January 31, 2008 Report Share Posted January 31, 2008 no cog/gear issues? Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted January 31, 2008 Author Report Share Posted January 31, 2008 no cog/gear issues?shouldnt be...what do you mean? Quote Link to comment Share on other sites More sharing options...
dave85 Posted January 31, 2008 Report Share Posted January 31, 2008 The alloy sleeve that you put on the axle before the freehub body, just make a bronze one of them that's large enough diameter to be a nice running fit on the inside of the freehub body, it's directly underneath the pawls so supports it well. Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted January 31, 2008 Author Report Share Posted January 31, 2008 ah, i get you will do that! Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted January 31, 2008 Report Share Posted January 31, 2008 sounds good, will be fine running on the one bearing on the drive side; its only got to support a lot shorter axle.slightly off topic but is the ratchet ring ona pro2 trials the same internal/external diameter as the ratchet ring on a normal pro2? was thinking about upgrading the pickup on my dh bikes wheels.....The ratchet ring is about the same as far as I'm aware, and aren't both a 24t job?Surely it's the offset pawls you need to speed up the engagement, Craig? Quote Link to comment Share on other sites More sharing options...
max-t Posted January 31, 2008 Report Share Posted January 31, 2008 Mint. How are you getting it cut? has to be 100% strait mind Post pics up if it works, and if it does i don't see any reason not to try it on a Pro II.Good luck. Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted January 31, 2008 Author Report Share Posted January 31, 2008 yer, i'll cut the axle in the metal working shop at school, might try and cut the freehub body myself too if i'm having a good day, if not i'll take it to the local engineer, i get on with him quite well, which is useful as he always does me little favours like this Quote Link to comment Share on other sites More sharing options...
craigjames Posted January 31, 2008 Report Share Posted January 31, 2008 The ratchet ring is about the same as far as I'm aware, and aren't both a 24t job?Surely it's the offset pawls you need to speed up the engagement, Craig?bugger think you might be right there mate. hmmm oh well if you can post up pics of the hub as it gradually gets changed, would be great to see it go together and could almost be used as a how to for other riders interested in doing it. Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted February 1, 2008 Author Report Share Posted February 1, 2008 I just finished modifying the axle on the lathe, quite happy with it The hard bit now, got to get the freehub body cut and get the thread tapped!below is a picture of the hub with the mod sized axle! Quote Link to comment Share on other sites More sharing options...
Davetrials Posted February 1, 2008 Report Share Posted February 1, 2008 you should have got a new freehub, that looks f**ked. Quote Link to comment Share on other sites More sharing options...
python_man Posted February 1, 2008 Report Share Posted February 1, 2008 looks sweet, little question though. will the hub be central on the axel??will everything line up all sweet??? Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted February 1, 2008 Author Report Share Posted February 1, 2008 (edited) It should be fine...the only thing is the rim will need dishing towards the non drive side obviously. Edited February 1, 2008 by samdoman Quote Link to comment Share on other sites More sharing options...
Muel Posted February 1, 2008 Report Share Posted February 1, 2008 It should be fine...the only thing is the rim will need dishing towards the non drive side obviously.I doubt it, because in a MTB, you need to dish the wheel to the drive side, so they should balance each other out pretty much, it might be about 5mm out or so. Quote Link to comment Share on other sites More sharing options...
Monty99 Posted February 1, 2008 Report Share Posted February 1, 2008 shouldnt be...what do you mean?dont you need 12t cog? are there others than the king12t cog? Quote Link to comment Share on other sites More sharing options...
Caleb Posted February 1, 2008 Report Share Posted February 1, 2008 there are tonnes of 12 tooth cogs available Quote Link to comment Share on other sites More sharing options...
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