This is a guide and tutorial of how to convert the KTM 690 SMC to a KTM 690 Enduro.
The following parts has been purchased to be mounted.
- KTM 690 Enduro front wheel complete 1.85*21
- KTM 690 Enduro rear wheel complete 2.50*18
- KTM 690 Enduro-distances matching front & rear hub to the rims above
- KTM 690 Enduro underbody protection (the original plastic engine cover)
- Rear tire Maxxis IT Maxxcross 120/100-R18
- Front tire Michelin S12 90/90-R21
- Maxxis X-thick tube 80/100-R21
- Maxxis X-thick tube 100-120/100-R18
- Rim & tire flaps for front and rear wheels
Some picture of the convert from SMC to Enduro:
(click the picture for a larger version)
Removing the rear wheel on 690’n was really easy. Just deattach the screw to the wheel axle and take of the rear wheel. After removal of the rear wheel move robber dampers with associated rear hub over to the Enduro Rear wheel.
Removal of rear brakedisc from SMC wheel to the Enduro wheel.
With brake disc and sprocket mounted on the enduro wheel, the complete enduro wheel was mounted back on the ktm 690. The same bushing is used on the SMC and enduro wheels so it was easy to install and mount the enduro wheel on the smc.
Removing the frontwheel was easy. Remove the front wheelaxel screw and loosen the four screws that holds the wheel axle in place.
Disassembly of the front brake disc from the ktm 690 smc wheel.
On the ktm 690 smc wheel there is a front brake disc adapter with a thicknes of 10mm, this adapter is used to get the brake disc out/away from the front rim. This adapter needs to be moved over to the enduro wheel or else the spokes on the front wheel will scratch against the brake caliper.
After mounting the brakedisc on the enduro front wheel the complete enduro wheel mounted on the ktm 690. It showed as seen on piucture that the SMC fork is wider. It was a total glap of 5 mm on each side of the fron wheel bushings.
SMC bushing to the left and enduro bushing to the right. On each side of the wheel there is two identical bushings mounted.
After the ktm 690 smc bushins was mounted on the enduro, perfect fit and no play at all.
Next concern was that the brake caliper and the sprockets was scratching against each other, thats because the smc brake disc has a larger diameter and results in that the brake caliper is mounted closer to the sprockets on the front wheel. To solve this concern I mounted the front bake disc 2mm away from the front wheel fork and original bushing with help of a 2mm homemade bushing.
After mounting the home made bushing and 2mm spacing between the brake disc adapter and the brake disc the free play was OK. Now the enduro can spin without the brake caliper and the sprocket is scratching each other.
KTM 690 SMC with enduro wheels mounted and engine cover plate.
After some test riding and adjustment of the front and brake shock/dampers I now have to bikes in one, one street bike and one offroad bike to ride on the dirt roads and enduro tracks.