Front fork question

[DS74BMW]

I usually post in the Airhead section [I have a '74 R60/6].

I have been told that a k-bike steering stem/ triple clamps will fit my R60 steering head, and that the tube diameter, however, is larger; this is an optional mod on some airhead/sidecar rigs to increase front end rigidity. I have a sidecar on my bike.

Does anyone here have any insights to this? My R60 tubes are 36mm dia.

Thanks,
Richard

[SugarHillCTD]

From the K11 Owner's Group website:

Frame/Suspension

Frame Tubular steel, engine as a structural component
Front Suspension telescopic fork with progressive spring action, refillable "cartridge type damper" system
Travel / Dimensions 5.3 inches / 41.7 mm stanchion tube diameter
Rear Suspension Patented BMW Paralever swingarm and shaft drive, single shock with variable rebound damping
Travel / Dimensions 4.7 inches, progressive spring, 5 positions

FYI-

http://k11og.org/reference/K1100RS_SpecSheet.shtml


Beyond this info I do not know- maybe Paul or Don can guide you further.

Good luck.

[bakrd]

The K1100 (and K100 16V) forks are larger in diameter and the triple tree is different than the K100's. I just replaced the front forks on my K100 RS 16 v and had originally bought some K100 forks thinking they would fit, they didn't. After doing some research it appears that the K75-K100 forks/trees up to the 16 valve are the same size. I do have a set of forks and tree for sale if you need them.

[DS74BMW]

From the K11 Owner's Group website:

Frame/Suspension

Frame Tubular steel, engine as a structural component
Front Suspension telescopic fork with progressive spring action, refillable "cartridge type damper" system
Travel / Dimensions 5.3 inches / 41.7 mm stanchion tube diameter
Rear Suspension Patented BMW Paralever swingarm and shaft drive, single shock with variable rebound damping
Travel / Dimensions 4.7 inches, progressive spring, 5 positions

FYI-

http://k11og.org/reference/K1100RS_SpecSheet.shtml




Beyond this info I do not know- maybe Paul or Don can guide you further.

Good luck.

Thanks, John - at least I now know the stanchion size.

The K1100 (and K100 16V) forks are larger in diameter and the triple tree is different than the K100's. I just replaced the front forks on my K100 RS 16 v and had originally bought some K100 forks thinking they would fit, they didn't. After doing some research it appears that the K75-K100 forks/trees up to the 16 valve are the same size. I do have a set of forks and tree for sale if you need them.

Thanks - PM sent

[DS74BMW]

The K1100 (and K100 16V) forks are larger in diameter and the triple tree is different than the K100's. I just replaced the front forks on my K100 RS 16 v and had originally bought some K100 forks thinking they would fit, they didn't. After doing some research it appears that the K75-K100 forks/trees up to the 16 valve are the same size. I do have a set of forks and tree for sale if you need them.

I have been researching a few things on my possible fork swap. Are your stanchion tubes 41.4mm [1.630"] diameter? Is the measurement across the stanchion tube bores in the tree approx 9 1/8" [outside-to- outside]?

Could you check these dimensions for me, and let me know? Thanks.

Richard