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Shimano E8000 derestricting options

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
Tried this today to no avail.
Thinking about wrapping some electrical tape around the plug and see if that Angus it up
 

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
I'm thinking of buying a spare shimano speed sensor and chopping the plug to graft onto the pear tune .
Any idea how many wires in these?
 

Brainless

Member
Sep 14, 2018
74
32
Bradford
Lot of hassle going on here for more speed... lot easier, cheaper just go buy a 50cc from local Kawasaki dealer etc... if you feel the need for speed.. ;-)
 

thebarber

E*POWAH Elite
May 28, 2018
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got husky 350 & a ktm 990 for that.
These bikes are designed to give more than what they do then EU get their mits on em and spoil it.
15mph limit is shite, my local trails at hamsterly havnt enuff fall on them so pedalling the fat pig above 15mph has me blowing oot my fat arse.
20's plenty for the jumpy stuff but I assume you think because we're de-restricting these bikes we're goin out to piss people off.
 

Brainless

Member
Sep 14, 2018
74
32
Bradford
got husky 350 & a ktm 990 for that.
These bikes are designed to give more than what they do then EU get their mits on em and spoil it.
15mph limit is shite, my local trails at hamsterly havnt enuff fall on them so pedalling the fat pig above 15mph has me blowing oot my fat arse.
20's plenty for the jumpy stuff but I assume you think because we're de-restricting these bikes we're goin out to piss people off.
Lmfho well you assume wrong, if ya want to risk warranty etc for a bit more speed that’s up to you, I’m just saying it seems a lot of hassle and pissing about to do it ..
 

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
Abu Rahman.
he's got a shop in Durham market, round the back next to the bins.
They're actually kamazakis, chinkNick offs ;)
 

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
Lmfho well you assume wrong, if ya want to risk warranty etc for a bit more speed that’s up to you, I’m just saying it seems a lot of hassle and pissing about to do it ..
Ok I bit there, but why'd y even go and look at a post you're not interested in or disapprove of ?
 

Brainless

Member
Sep 14, 2018
74
32
Bradford
Ok I bit there, but why'd y even go and look at a post you're not interested in or disapprove of ?
No fella ya getting me all wrong, I’m taking the piss regarding motorbikes, I’m just going off all the diff posts on what ye need to do for that extra touch, and truth be told once I get my choice of bike and try it, I’ll prob want more too. It’s like everything else that’s new and got limits folk want a way round it. Surely it must have affect somewhere down line ? . How would Levos etc manage when need updates ? Just curious
 

Gary

Old Tartan Bollocks
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maybe ask in a Spesh related de-restricting thread? Just a thought ;)
 

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
Well as most mods y not gonna know until y do it but believe me it's.worth the hassle.
Try it, I suppose it's a bit like trying to convert an analogue biker to elecy.
Eitherway, enjoy what y doin.
 

Gary

Old Tartan Bollocks
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While we're talking about SHIMANO modding ;)

What speed do your bikes stop assisting at?
According to GPS I seem to have managed 33mph at 4am while riding home drunk last night and the motor didn't stop assisting. That can't be right? Can it?

might try again sober.
 

Brainless

Member
Sep 14, 2018
74
32
Bradford
Well as most mods y not gonna know until y do it but believe me it's.worth the hassle.
Try it, I suppose it's a bit like trying to convert an analogue biker to elecy.
Eitherway, enjoy what y doin.
Lol mate, I’ve just fooked up my yari forks messing around, I don’t think I’m gonna mess around with ebike
While we're talking about SHIMANO modding ;)

What speed do your bikes stop assisting at?
According to GPS I seem to have managed 33mph at 4am while riding home drunk last night and the motor didn't stop assisting. That can't be right? Can it?

might try again sober.
???
 

Gary

Old Tartan Bollocks
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Hope this solves your issues.
Funnily enough I've just silicone sealanted the plastic cover to the plugs.
Didn't bother doing anything to the actual plugs/connectors. I've never had wet/dirt inside mine and I only decided to use sealant since fitting the peartune as the top of the plastic has a small gap it didn't have before the peartune was fitted.
 

Gary

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@davosaurusrex
Cheapie Chinese NW chainring was waiting for me after I got home from today's ride. it fitted fine.
When fitted there's ample clearance at the chainstay but very minimal clearance for the rear mech cable where it comes out and into the BB/motor area. I suppose a work around this would be to re-route it along the outside of the chainstay if you wanted to run a 38T ring. (I think there'd 'just' be room).
annoyingly the shimano top guide only has mounting positions for 34 or 38T so needs to be in the 38T setting meaning there's more top gap than ideal but TBH I can't see it being a huge problem. (I might actually cut a slither of mastik and put it in there to fill the space and also quieten any chatter there may be from chain bounce.
Anyway I haven't ridden with it yet so will post again if there's anything else worth saying about it once I have.

Due to treefall from today's storm completely blocking a climb I ended up having to ride back from Peebles to Glentress on the main road this afternoon and was spinning along at 30mph fairly easily with the 34T so for me a 36T is not really needed but if nothing else the 36T should save using the 13 & 11T sprockets so much off-road
 

Gary

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Depends on your definition of going like the clappers.

My max (peak) cadence on my roadbike is over 240rpm and I can hold 160+ no problem
30mph on 34/11 is only 120rpm
I'm fairly sure the motor cuts assistance somewhere between 130-140 this (and wind resistance) would be the limiting factor, not my ability to spin
 

Gary

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Happy not to disappoint.

Been out for a quick local spin today on the 36T
It's better. I'm no longer in the smallest two sprockets as often (it's fairly flat round here)
I tested out the max speed assistance and it definitely seems to keep assisting when the display reads 16mph. (weird). I was on a flat road but it is blustery as hell today so wind drag was pretty bad but according to GPS (on the bars) I was hovering around the 33mph mark. Will no doubt try again at some point in better conditions. Maybe with 60psi, my skinsuit on and tri bars and possibly drafting a bus/tractor ;)
As Kernow had said the 36T solved the intermittent cutting out he had after fitting his peartune I tried boost and trail in the lowest two gears (37t and 42t) where they would cause cutting out previously with the 34T ring and the 36T does indeed seem to solve the problem. When pedalling at a decent cadence it no longer seems to cut out. when riding really slowly (fairly soft pedalling it still does cut out earlier than before derestriction possibly just due to imput lag) I only climbed one steep hill (well a steep very narrow path next to a staircase up to an old railway line). with decent torque and fairly slow cadence it didn't cut out. This isn't really a true test as I can get a normal bike up this but it is about the limit of what a normal bike will climb and for all I know it may still be a problem on properly slow steep proper off road climbs (I don't really do many of those though). This solution really does confuse me as it doesn't seem to be entirely down to gearing (36/42 being a lower gear than 34/37 which caused the problem before) Maybe it's something to do with the Shimano system being designed to run 34 or 38T rings, who knows but it worked so I'm not complaining. Thanks for sharing the tip Kernow.
 

davosaurusrex

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Apr 21, 2018
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My Snail chainring turned up yesterday, I do love the Chinglish!


20180921_190712.jpg
 
Last edited:

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
I didn't struggle with it, it just didn't last.
I now have 2 pear tune chips and both have pigged, I'm assuming the plug into the motor just because it's shit hence grafting a shimano plug from a new speed senso so let's see how it gets on.
 

thebarber

E*POWAH Elite
May 28, 2018
986
596
Norfeast
Bought it from ebiketune germany I think and they put peartune in touch with me, they sent out a new one but I was meant to send other back and forgot.
I emailed their tech support about putting Shimano plug on but heard nowt hence having 2
 

Gary

Old Tartan Bollocks
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And put a bead on each half of the underside of the chain device plate as per your suggestion @Gary.
I didn't silicone the chain device. I cut a slither of Mastic 2228 and fitted it to the underneath of the top channel to fill in a little of the the extra height running it in the 38T position created and reduce the chance of deraillment from chain bounce..
I also replaced the rubber on the entry bar CRC FUCKING LOST with rubbber self amalgamating tape.
#SilenceisGoldenGolden
 

davosaurusrex

E*POWAH Master
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Apr 21, 2018
598
353
Worthing
I know but same idea, I just don't have any mastic tape at the moment. Will have to see how the silicone lasts, chain may well just rip it up
 

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