macduff Posted June 18, 2014 Report Share Posted June 18, 2014 Hi there. I've recently picked up an 85 TY250 mono and I'm thinking about putting a disc conversion to the front end. I've trawled ebay but there's nothing kicking about. Can anyone recommend a particular conversion or solution and where i can get one from. Reading between the lines the disc and drums are pretty much the same in the dry but I live in Scotland and not afraid to get wet so hopefully the difference in wet conditions would be worth the conversion. Cheers. Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted June 18, 2014 Report Share Posted June 18, 2014 replace full front end Quote Link to comment Share on other sites More sharing options...
dadof2 Posted June 18, 2014 Report Share Posted June 18, 2014 The kits used to use Brembo calipers and hydraulics, can't remember who did them but they were prohibitively expensive. Some of the kits looked a bit bulky, probably best to look for someone breaking a "pinky" which was the later air cooled Yam with the disc brake and fit the whole front end. Quote Link to comment Share on other sites More sharing options...
lineaway Posted June 19, 2014 Report Share Posted June 19, 2014 83/84 yz125/250 complete front wheel (zsp0ke) caliper and master cylinder. I had a friend fabricate an aluminum mount that just was clamped to the Ty forks. It was cheap off a parts bike and worked a treat. Better than all the trials brakes of that time. Quote Link to comment Share on other sites More sharing options...
macduff Posted June 19, 2014 Author Report Share Posted June 19, 2014 Thanks for the advice, I just need to keep an eye out for the parts, unless anyone knows where I can get a hold of front end of a Yz. Cheers Quote Link to comment Share on other sites More sharing options...
bezaboy Posted June 19, 2014 Report Share Posted June 19, 2014 83/84 yz125/250 complete front wheel (zsp0ke) caliper and master cylinder. I had a friend fabricate an aluminum mount that just was clamped to the Ty forks. It was cheap off a parts bike and worked a treat. Better than all the trials brakes of that time It was 1985 the N model which first had disc brakes, the 84 was the twin drum brake. The 85/86 set-up is much sort after, with the Pre 85 Evo series lots of people looking for them. Not a cheap route, last good set sold for over £300 ( wheel, caliper, disc, master cyinder and spindle ) and you can add over £100 more for the fork legs. Quote Link to comment Share on other sites More sharing options...
dadof2 Posted June 19, 2014 Report Share Posted June 19, 2014 http://www.ebay.co.uk/itm/Yamaha-TYZ-250-Trials-Breaking-for-spares-/111369579101?pt=UK_Motorcycle_Parts&hash=item19ee24ea5d I think TYZ uses same spindle as TY, spacers and calliper bracket should be easy enough to make. Quote Link to comment Share on other sites More sharing options...
lineaway Posted June 19, 2014 Report Share Posted June 19, 2014 It was 1985 the N model which first had disc brakes, the 84 was the twin drum brake. The 85/86 set-up is much sort after, with the Pre 85 Evo series lots of people looking for them. Not a cheap route, last good set sold for over £300 ( wheel, caliper, disc, master cyinder and spindle ) and you can add over £100 more for the fork legs. You are right, my mind is slipping. Quote Link to comment Share on other sites More sharing options...
craig10 Posted June 20, 2014 Report Share Posted June 20, 2014 (edited) A TYZ wheel will go straight in to a Pinky front end, don't know about drum brake model though. I know a guy who used to borrow his mate's one to get his Pinky through the MoT... Edited June 20, 2014 by craig10 Quote Link to comment Share on other sites More sharing options...
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