Claude Posted September 29, 2022 Share Posted September 29, 2022 New to FZ07 world so excuse me if this already have been covered (I made a search and found nothing revelant). From my reading on the FB FZ07 page, damage to rear axle nut seem to be a quite frequent occurence. Is it the same thing here? I always have been using a torque wrench on the wheels of all my bikes and will do the same on my FZo7. Am I at risk then? Link to comment Share on other sites More sharing options...
Claude Posted September 29, 2022 Author Share Posted September 29, 2022 Looks to be some solutions though as per the two links below. Do you know if one is better than the other? I always am trying to foresee a solution for an eventual problem and could buy one of the option below just in case. I would hate to damage a rear axle which, anyway, costs about as much as those options... Thanks! Sicherheitsmutter ACM titan M18X1,5 KIT Material: Titan ti6alv4; mit 20 Gramm eine ultraleichte Achsmutter in formschönem Design; neuartige „pin-lock“... Yamaha FZ07 MT-07 Captive Axle Slider Blocks Billet 2015 2016 2017 2018 2019 2020 quick change slider blocks Yamaha FZ07 MT-07 Captive Axle Slider Blocks Billet 2015 2016 2017 2018 2019 2020 quick change slider blocks Link to comment Share on other sites More sharing options...
M. Hausknecht Posted September 29, 2022 Share Posted September 29, 2022 The Yamaha suggested torque is a bit higher than necessary. I've found 65ft/lbs to be sufficient. The stock nut seems to be the source of the problem that numerous people have experienced. I've got a titanium nut that works well but, unfortunately, I don't recall where it came from. I put a smidgen of anti-seize on the axle's threads and haven't gotten any galling. 2 Link to comment Share on other sites More sharing options...
Global Moderator Pursuvant Posted September 29, 2022 Global Moderator Share Posted September 29, 2022 Here's the gore-ee story "sspicion has moved from Fuji nut, to axle material being soft, to lack of anti-seize, to "work stress" with high torque spec a compounding factor" Link to comment Share on other sites More sharing options...
Triple Jim Posted September 29, 2022 Share Posted September 29, 2022 I've adjusted my chain a couple times, and nothing unusual happened. Link to comment Share on other sites More sharing options...
Claude Posted September 29, 2022 Author Share Posted September 29, 2022 Just now, M. Hausknecht said: The Yamaha suggested torque is a bit higher than necessary. I've found 65ft/lbs to be sufficient. The stock nut seems to be the source of the problem that numerous people have experienced. I've got a titanium nut that works well but, unfortunately, I don't recall where it came from. I put a smidgen of anti-seize on the axle's threads and haven't gotten any galling. The first link I posted is precisely that: a titanium nut from Gilles tooling. Quite expensive but worth its cost if it eliminates the problem. Link to comment Share on other sites More sharing options...
Claude Posted September 29, 2022 Author Share Posted September 29, 2022 (edited) Just now, Pursuvant said: Here's the gore-ee story "sspicion has moved from Fuji nut, to axle material being soft, to lack of anti-seize, to "work stress" with high torque spec a compounding factor" Cheech! Quite a long story. Worst part is that there's still no clear solution. Pursuvant, I see that you are quite involved in this thread; do you have any opinion about the two solutions I posted the links of? (second post of this thread). Thanks! Edited September 29, 2022 by Claude Link to comment Share on other sites More sharing options...
Claude Posted September 29, 2022 Author Share Posted September 29, 2022 Just now, Triple Jim said: I've adjusted my chain a couple times, and nothing unusual happened. Any special procedure? Like threads cleaning, anti-seize, etc... Link to comment Share on other sites More sharing options...
Triple Jim Posted September 29, 2022 Share Posted September 29, 2022 (edited) Nothing special, but I didn't use a torque wrench. It's likely I didn't get to the 76 lb-ft in the manual. It was good and snug though. Edited September 29, 2022 by Triple Jim Link to comment Share on other sites More sharing options...
Global Moderator Pursuvant Posted September 29, 2022 Global Moderator Share Posted September 29, 2022 3 hours ago, Claude said: Cheech! Quite a long story. Worst part is that there's still no clear solution. Pursuvant, I see that you are quite involved in this thread; do you have any opinion about the two solutions I posted the links of? (second post of this thread). Thanks! Disclaimers - Always follow the Yamaha recommendations. ----Here's #1 OEM Fuji axle nut, OEM axle, drill axle for R-cotter pin, anti-seize, and reduced torque to 52 ft-lbs (a reduction of the recommended torque and reduction for the anti-seize reduced coefficient of friction). You can have any machine shop or independent motorcycle shop drill your axle for an R cotter pin, and hardware store keeps cotter pins in stock. Use anti-seize every time you take nut loose to adjust chain, etc. Take the nut off, wipe it and the axle clean, and put on fresh anti-seize. Reduce that axle nut torqe. ---- here's #2 If you don't have axle sliders, get them front & rear, because yes. These pic are Woodcraft rear axle sliders for mt-07. They will prevent the axle nut from coming off axle. Use anti-seize every time you take nut loose to adjust chain, etc. Take the nut off, wipe it and the axle clean, and put on fresh anti-seize. OEM Fuji axle nut, OEM axle, and reduced torque to 52 ft-lbs. That's how I run at the moment. -----here's #3 Forget about it because bad things never happen, and you're smart you know this never happened and this is the user's fault and can't happen to you Whis is it happening? I think some axles have a higher than normal silver content. And you can compress those rear wheel bearings with less than 76 ft-lbs torque 1 Link to comment Share on other sites More sharing options...
Claude Posted September 29, 2022 Author Share Posted September 29, 2022 Thanks for all the comments!! Link to comment Share on other sites More sharing options...
Triple Jim Posted September 30, 2022 Share Posted September 30, 2022 Just now, Pursuvant said: I think some axles have a higher than normal silver content. What steel alloy contains silver? 1 Link to comment Share on other sites More sharing options...
sweetscience Posted September 30, 2022 Share Posted September 30, 2022 +1 for the Gilles axle nut. The locking mechanism is friction based that is applied to axle thread by some kind of malleable polymer, via grub screw. Looks like rubber to me. Fuji nuts are nutty. Designed to gall and cause damage. Y'all forget to use a torque wrench? Or is the joke on me? 1 Link to comment Share on other sites More sharing options...
ElGonzales Posted September 30, 2022 Share Posted September 30, 2022 I have still the first original Yamaha nut on my 2014 MT-07. No problems. Always cleaned the threads, used a little bit of ceramic anti seize and decreased the torque to ~100 Nm 1 Link to comment Share on other sites More sharing options...
Global Moderator Pursuvant Posted September 30, 2022 Global Moderator Share Posted September 30, 2022 Just now, Triple Jim said: What steel alloy contains silver? Thank you for fixing my mental lack, I'll do my best to quit saying "silver content" Link to comment Share on other sites More sharing options...
Tpadden Posted September 30, 2022 Share Posted September 30, 2022 (edited) Pro bolt makes one as well. I use a quality castle nut on the race bike Edited September 30, 2022 by Tpadden 1 Link to comment Share on other sites More sharing options...
Claude Posted September 30, 2022 Author Share Posted September 30, 2022 (edited) Just now, Tpadden said: Pro bolt makes one as well. I use a quality castle nut on the race bike You’re right. I just looked on Pro bolt website and found two; one stainless and one titanium. I know SS nut on SS bolt is prone to galling but how a SS nut reacts on a STD steel shaft? I’m asking assuming FZ07’s rear wheel axle is made of STD steel. Is titanium a better choice (vs SS)? Personally, I don’t really mind about titanium lower weight. SS is half the cost so it would be my choice if recommended. Edited September 30, 2022 by Claude Link to comment Share on other sites More sharing options...
Claude Posted September 30, 2022 Author Share Posted September 30, 2022 Links to Pro bolt. Stainless Steel Axle Nut M18x(1.50mm) Rear Wheel (LSSNUT18150001Z2) Stainless Steel Rear Axle Nut. M18 x 1.50mm with integral washer, 27mm A/F. Manufactured from 316 Stainless Steel to provide... Titanium Flanged Axle Nut M18x(1.50mm) Rear Wheel Titanium Rear Axle Nut. M18 x 1.50mm with integral washer. Manufactured from Grade 5 Titanium to provide excellent weight... Link to comment Share on other sites More sharing options...
Tpadden Posted September 30, 2022 Share Posted September 30, 2022 I’d go stainless 1 Link to comment Share on other sites More sharing options...
shinyribs Posted September 30, 2022 Share Posted September 30, 2022 22 hours ago, M. Hausknecht said: The Yamaha suggested torque is a bit higher than necessary. I've found 65ft/lbs to be sufficient. The stock nut seems to be the source of the problem that numerous people have experienced. I've got a titanium nut that works well but, unfortunately, I don't recall where it came from. I put a smidgen of anti-seize on the axle's threads and haven't gotten any galling. I think Yamaha is spitting out torque specs looking at a chart based on fastener size and not usage. CP3 guys are blowing oil pans apart following the recommend 35 ft lbs (!) spec. One poor guy stripped his steering stem trying to hit the , IIRC, over 100 ft lb spec on that one. That's just abusive at that point. I don't have much faith in Yamaha torque specs at the moment. 1 Link to comment Share on other sites More sharing options...
Claude Posted September 30, 2022 Author Share Posted September 30, 2022 I found two options on Ebay. I know, it is Chinese stuff but wondering about opinions as cost is about 1/3 of the aformentionned options. What do you think? M18 M20 M22 M24x1.5mm Titanium Flange Nuts for Bicycle Motorcycle Car Tiremet | eBay Find many great new & used options and get the best deals for M18 M20 M22 M24x1.5mm Titanium Flange Nuts for Bicycle Motorcycle... M18x1.5mm Burn Blue GR5 Titanium Flange Hex Nut For Motorcycle Centre Shaft | eBay Find many great new & used options and get the best deals for M18x1.5mm Burn Blue GR5 Titanium Flange Hex Nut For... M18x1.5mm Ti GR5 Titanium Flange Hex Nut For Motorcycle Centre Shaft | eBay Find many great new & used options and get the best deals for M18x1.5mm Ti GR5 Titanium Flange Hex Nut For Motorcycle... Link to comment Share on other sites More sharing options...
Global Moderator Pursuvant Posted September 30, 2022 Global Moderator Share Posted September 30, 2022 Just now, Claude said: I found two options on Ebay. I know, it is Chinese stuff but wondering about opinions as cost is about 1/3 of the aformentionned options. What do you think? M18 M20 M22 M24x1.5mm Titanium Flange Nuts for Bicycle Motorcycle Car Tiremet | eBay Find many great new & used options and get the best deals for M18 M20 M22 M24x1.5mm Titanium Flange Nuts for Bicycle Motorcycle... M18x1.5mm Burn Blue GR5 Titanium Flange Hex Nut For Motorcycle Centre Shaft | eBay Find many great new & used options and get the best deals for M18x1.5mm Burn Blue GR5 Titanium Flange Hex Nut For... M18x1.5mm Ti GR5 Titanium Flange Hex Nut For Motorcycle Centre Shaft | eBay Find many great new & used options and get the best deals for M18x1.5mm Ti GR5 Titanium Flange Hex Nut For Motorcycle... Can I suggest this is a problem that does not require a new part. We have been running fine for years by reducing the torque to something around 55 ft-lbs and using anti-sieze. Why go chinesium with unknown qualities? Even with Chinesium, you still have to reduce torque and use anti-sieze 1 Link to comment Share on other sites More sharing options...
Claude Posted October 1, 2022 Author Share Posted October 1, 2022 (edited) Just now, Pursuvant said: Can I suggest this is a problem that does not require a new part. We have been running fine for years by reducing the torque to something around 55 ft-lbs and using anti-sieze. Why go chinesium with unknown qualities? Even with Chinesium, you still have to reduce torque and use anti-sieze Well, you’re right. Let’s consider the parts mentionned above (not the Ebay parts) an alternative if the OEM nut ever goes wrong/damaged and need to be replaced. Edited October 1, 2022 by Claude Link to comment Share on other sites More sharing options...
Premium Member cornerslider Posted October 1, 2022 Premium Member Share Posted October 1, 2022 On 9/29/2022 at 12:40 AM, M. Hausknecht said: The Yamaha suggested torque is a bit higher than necessary. I've found 65ft/lbs to be sufficient. The stock nut seems to be the source of the problem that numerous people have experienced. I've got a titanium nut that works well but, unfortunately, I don't recall where it came from. I put a smidgen of anti-seize on the axle's threads and haven't gotten any galling. +1 on this!!! After the OEM nut destroyed my axle (which is more expensive to replace than one might think), I was part of a "group buy" on this site. We got a discounted price on titanium axle nuts from Beleisi-Moto, which is a site sponsor of the FZ-07.org site. They have an allen head set-screw that locks it in place mechanically, rather than the OEM axle nut that chews up axles. My local club racing org requires a "locking axle nut", or a pin that prevents the axle nut from coming loose. When I brought my bike to "tech-inspection", it didn't pass (initially). After I pointed out the set screw that they missed, it passed. The tech guy was actually pretty impressed- ""W.O.T. until you see god, then brake" Link to comment Share on other sites More sharing options...
Claude Posted October 1, 2022 Author Share Posted October 1, 2022 Just now, cornerslider said: ...We got a discounted price on titanium axle nuts from Beleisi-Moto, which is a site sponsor of the FZ-07.org site... Do you mean Bellisi-Moto? Link to comment Share on other sites More sharing options...
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