Rick76
Junior Member
Posts: 41
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Post by Rick76 on Jun 2, 2011 5:03:07 GMT -5
Good day all - I've found a slight mystery on dismantling the front forks on my NTV k circa 1990. It looks like someone has added two extra tubular spacers about 20mm long under the normal ones the idea being I presume, to increase the spring preload. Has anyone Heard of doing this? They're comin out anyway! I thought they jolted a bit too much! Does anyone Know what the standard tubular spacer length is and are they all the same? The springs look OK at 320mm. Otherwise I fitted a pair of Deauville footrests no probs. but spent ages getting the brake and the gear pedal positions right. Had to do a bit of cutting, grinding and filing because could not lower them enough. The Deauville brake pedal has shorter lug which gives greater force on master cylinder. I've Raked the handlebar posts back and up, and had extra stuffing put in the seat After all that it really is much better for a tall person with just the taper rollers in the steering head to do. (waiting on delivery) From reading various blogs, some people swear that moving the fork stanchions higher by about 1cm in the yokes (thus lowering rake and trail slightly) makes the handling & steering easier to manage. Again, any experiences anyone ? Thanks to Cyril and Outlaw and Jake (to name but three) for their useful articles & info. - regards Rick
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Post by Jake on Jun 2, 2011 12:41:50 GMT -5
Good day all - I've found a slight mystery on dismantling the front forks on my NTV k circa 1990. It looks like someone has added two extra tubular spacers about 20mm long under the normal ones the idea being I presume, to increase the spring preload. Has anyone Heard of doing this? Hi Rick, I've heard of people adding washers or even coins to increase spring preload, but not adding extra spacers.... My spacers and old springs are in the house somewhere, if I find the spacer, I'll measure it up for you. I removed them when I first bought the bike and replaced them with Hagon prgressive fork springs and 15w oil (although Hagon specify 5w, which seems ridiculously thin). I also fitted a Telefix fork brace, which is easy enough to remove if I ever want to soften the suspension up a bit...... I haven't altered the fork height but have added 50mm bar raisers. The steering felt a bit odd at first, not unstable, just strange. But I've gotten used to it now. After making these changes, I found that I could quicken or slow the steering down, simply by adjusting the rear suspension to suit..... I've also lowered the footpegs by 50mm using a kit which I bought from M&P (or Busters). I didnt have any problems lowering the gear change pedal. I just undid the srew and moved the lever around the splines.... |
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Rick76
Junior Member
Posts: 41
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Post by Rick76 on Jun 2, 2011 15:32:35 GMT -5
Oh that's interesting Jake, - I didn't realise that the Hagon progressive springs are full length, i.e. no spacers at all. I like that idea. (2nd hand pair knockin around anyone?) Steering head bearings came today so reassembly commences tomorrow.
Re: Deaville rests and my preferred low gear pedal : the footrest lugs interfere with the gearpedal lug at its lowest point of travel (does not have enough travel for changing down/selecting 1st ) so careful metal removal and adjustment to obtain clearance did the job. When the forks are back together and working properly pehaps the recommended ATFluid will be OK. I believe it's meant to be about SAE. 7.5 - thanks for your response - rick
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