[url=http://www.bikeradar.com/forums/viewtopic.php?p=19765271#p19765271]The Rookie[/url] wrote:
Fork with disc brake mounts, front wheel, front brake including disc and bolts and any adaptor to the fork you have.
Brakes come in two common mounting, IS (International Standard) where the boles in the fork are unthreaded and 'across' the fork parallel to the wheel axle, and PM (Post Mount) where the hole is threaded and the holes point towards the rear of the bike.
If you bolt an IS calliper to an IS fork you don't need an adaptor for 160mm disc (fine for a commuter), likewise if you fit a PM calliper to a PM fork, otherwise adaptors are available to work with most combinations.
[url=http://www.bikeradar.com/forums/viewtopic.php?p=19766024#p19766024]The Rookie[/url] wrote:
I'm not aware of any adaptor to put disc brakes onto a non disc brake fork, for starters the fork may not be strong enough to take the loading which is put into the fork in a very different place to a rim brake.
[url=http://www.bikeradar.com/forums/viewtopic.php?p=19766252#p19766252]The Rookie[/url] wrote:
Hydraulic discs are inherently more reliable than cable but are harder to fix if something does go wrong, cable need some TLC and occasional adjustment to keep running at their best.
Best price you'll gethttp://www.chainreactioncycles.com/shimano-deore-m447-disc-brake-caliper/rp-prod119952 they slao do the SLX trecking for a little more.
I did this conversion to my Ghost last year and used one of these http://www.wiggle.co.uk/kinesis-cx-dc37-carbon-road-fork-disc-mount/ and then fitted Shimano hydraulics with a 160mm disc for the rest. Wheel was a Shimano disc specific.
That fork has good clearance and a mounting point for front mudguards.
Its not a cheap conversion but so much better to know you're going to stop when you grab a handful. As a slight bonus, when dry I rarely use the rear, so that's increased the longevity of that wheel. Only issue I've had is noise but that is just a matter of adjustment.
[url=http://www.bikeradar.com/forums/viewtopic.php?p=19775181#p19775181]The Rookie[/url] wrote:
Look at the Mosso forks on ebay, start at £40, not carbon but the that's a lot cheaper!
[url=http://www.bikeradar.com/forums/viewtopic.php?p=19775239#p19775239]The Rookie[/url] wrote:
You need to look for CX forks really.
1/ Steerer size (1", 1 1/8" or tapered - yours is probably 1 1/8")
2/ Steerer length (long enough for your headtube+headset stack+stem height-3mm at the shortest, if you want spacers add that in as well).
3/ Axle to Crown height to maintain geometry.
Wheel size doesnt matter as a 700c and a 26" MTB tyre have a similar radius, a 29" MTB is bigger so your 700c will clearly fit anyway.
The Mosso is a Cx style fork!http://www.ebay.co.uk/itm/Mosso-Ridged-Straight-Blade-FK-M5-MTB-Fork-Black-Red-7005-3x-Butted-Heat-Treated-/191692608772?hash=item2ca1c51504:g:g2YAAOSwVL1WAAGh
You have the 2 styles of disc mount mentioned earlier, IS and PM, PM will save you about 30-35g in weight (if using a 160mm disc) as it needs no adaptor or second set of bolts.
do I need to buy a 'disc' wheel ?
a disc road bike wheel (if such a thing exists)