greenspeed GT20 questions
greenspeed GT20 questions
Postby Nazar » Sun Nov 07, 2021 12:04 pm
am interested in a greenspeed GT20 (hey admin, i read the post )
with my previous bikes (2 weelers) i had suspension and would never go back to a rigid frame, but being a recumbent i am told you don't feel the vibrations/bumps the same? any advice.
have test ridden the one above, but i live in the country and i could only test ride it in the smooth roads of Perth.
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Re: greenspeed GT20 questions
Postby TrikeTragic » Sun Nov 07, 2021 6:28 pm
Effectively, the mesh seat is the suspension. Yes you feel vibrations and definitely feel sharper ripples or uneven road surface, but there is no comparison with how these feel, even on a suspended bike. Basically, road shocks are spread over much broader body contact area than a bike seat, and are certainly not transmitted straight up your spine.
Tyres and tyre pressures are also part of the equation. I find I don't need high tyre pressures with my weight spread over the extra point of contact with the road. 60 psi in 100 psi rated tryres is quite adequate and does not drop efficiency very much, and anything like 80 plus psi is much rougher to ride.
Cheers
BentCyclist
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Re: greenspeed GT20 questions
Postby zebee » Sun Nov 07, 2021 8:41 pm
I haven't ridden a suspended bike but I've taken the GT over some rough roads and large chipseal and was fine. You really do notice the difference between what your body feels and what your hands feel!
You do need big tyres. I have 42mm Conti Urbans are they are very nice - comfortable and fast. It's nicer with those than it was with the Marathons. Of course Marathons are known to be stiff tyres.
Re: greenspeed GT20 questions
Postby Nazar » Mon Nov 08, 2021 1:19 pm
TrikeTragic wrote: ↑Sun Nov 07, 2021 6:28 pmI don't have a GT-20, but mine is a 20 - 26 recumbent trike with no suspension, same mesh seat as the Greenspeed.
thankyou alan and zebee, that answers my question perfectly with options for a smoother ride
so now i know i have the right bike , The question will be what accessories i will need ? and i would greatly appreciate any help or alternatives to buying the official accessories ?
this is what i am thinking : greenspeed official accessories
a) - bash guard for front sprocket (must, not official acc)
b) - luggage rack $89 USD (i figure with the folding design, the official one will fit)
c) - headrest $139 USD (not sure i will need it, as the seat will be mostly in the upright position) ??? people with experience, please chime in.
d) - front fenders $195 (don't want dirt flicking up in my face turning corners), a cheaper alternative or make them myself would be greatly appreciated.
e) - accessory mount $29 (assume this is also "grab handles" and mirrors can be attached to it) please chime in telling me if this is correct.
f) - light mount $25 (seems like a good idea as safety is very important to me, but seems expensive for what it is)
g) - side pannier (not official acc , for phone, keys, wallet, easy access)
a lot to read there, hardly anyone will read it, any help with each of these items would be appreciated
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Re: greenspeed GT20 questions
Postby zebee » Mon Nov 08, 2021 7:56 pm
I have one for the 2 wheeler because that goes in trains. Don't for the trike and have never seen a need for it. I was way more scared for the rear deraiileur than the front but neither have had issues even over grass or shrubbery. (It was only once! honest!)Nazar wrote: ↑Mon Nov 08, 2021 1:19 pm
so now i know i have the right bike , The question will be what accessories i will need ? and i would greatly appreciate any help or alternatives to buying the official accessories ?
this is what i am thinking : greenspeed official accessories
a) - bash guard for front sprocket (must, not official acc)
I have the official one and it fits easily. I have sorta looked at a topeak one to fit my racktop bag but instead used a seatpost rack for it attached to the headrest. Panniers clip to the rack, racktop bag sits above it. THe issue is there aren't that many places to attach the front part of a non-GS rack.b) - luggage rack $89 USD (i figure with the folding design, the official one will fit)
I find it nice to have on longer rides. Even at traffic lights it is good to lie back and rest. My seat is on the 2nd lowest point at the back. WHich is still fairly upright.c) - headrest $139 USD (not sure i will need it, as the seat will be mostly in the upright position) ??? people with experience, please chime in.
Bloody things move all the time. I tried and tried but they would slip around and get in the way and are generally a right pain. Alas if you don't have them you do get wet and if you are in muddy water you get dirty as well. I live with that because I never could get the mudguards working. Doesn't matter what you do when you are clamping something around a round pole it won't stay.d) - front fenders $195 (don't want dirt flicking up in my face turning corners), a cheaper alternative or make them myself would be greatly appreciated.
And if you do have them and the move around the pole they fail to do the job you want them for, Fiddly buggers to fit and impossible to keep fitted.
I have the tall pole things the mudguards attached to and Mircycle MTB mirror bar end mounts fit into the tops of those without a problem. I don't use a computer so don't need to worry about that.e) - accessory mount $29 (assume this is also "grab handles" and mirrors can be attached to it) please chime in telling me if this is correct.
p-clip from Bunnings or your nearest electrical bits place. Or make one out of ally strip. Clamp around the front deraiileur post. Or get proper B&M lights and bolt that to the hole on top of the post.f) - light mount $25 (seems like a good idea as safety is very important to me, but seems expensive for what it is)
I spent the money on terracycle bits to mount a bottle and an ortlieb handlebar bag next to the seat. Right now the bottle is there but the config for the bag is not as I don't need it on a commuter. If I was going touring I'd set that back up again. They sell clamps and bars that fit the seat tubes, such things are surprisingly hard to find due to odd tube diameters.g) - side pannier (not official acc , for phone, keys, wallet, easy access)
My best accessory is one of these!
https://www.aliexpress.com/item/1005001854347675.html
I got an orange one. The poles fit down the seat tubes, I fasten the front down with 2 cords (attached to points I sewed on) that run to the mudguard poles. Sunshade, some rain protection and magnificent visibility!
It does sometimes flap down in my face if a gust catches it wrongly but I cope. One day I'll work out how to stop that I guess but I think it means a much more rigid frame.
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Re: greenspeed GT20 questions
Postby skyblot » Mon Nov 08, 2021 9:13 pm
Of your listed GS accessories, the US$ pricing is misleading...current pricing is as follows but is subject to change. (AUD incl gst)
Rear Rack $183
Headrest $209
Front Mudguards $272 (also needs accessory posts, double pinch clamps, and accessory mount all x 2)
Accessory post $18 ea
Double pinch clamp $36 ea
Computer/shifter mount $52 ea
Grab Handle $34 ea
The accessory mount (computer/shifter) is not the same as the grab handles. The grab handles are very similar to MTB bar end handles from years ago, they are not at 90 degrees like the accessory mount and are slightly bigger diameter. Clamps meant for 22.2mm handle bars probably won't fit. The mudguards won't fit using the grab handles.
You will need a mirror (or two). The Mirrycle MTB mirror is ideal, and fits in the top of the accessory post, or the end of the grab handle, and gives a very good and stable view of what's happening behind.
A cheaper generic rear rack is available, but does need a little work to make it fit.
As far as recommended accessories, a mirror is mandatory (I think), and add a rear rack, and a headrest to make the trike immediately usable. All the other bits are nice to have's, and may or may not suit your riding style...
Re: greenspeed GT20 questions
Postby Nazar » Tue Nov 09, 2021 7:30 pm
hey zebee, i want to thank you for you excellent feedback, you have given me a lot of real world experience here with each of my questions, i really appreciate it, but especially for the above idea - i know i wont be able to fold the trike but my wife kept mentioning a sun shade (didn't know anything like this existed) i am pretty handy so if i think of a better way of fixing it, i will let you knowzebee wrote: ↑Mon Nov 08, 2021 7:56 pmMy best accessory is one of these!
https://www.aliexpress.com/item/1005001854347675.html
I got an orange one. The poles fit down the seat tubes, I fasten the front down with 2 cords (attached to points I sewed on) that run to the mudguard poles. Sunshade, some rain protection and magnificent visibility!
It does sometimes flap down in my face if a gust catches it wrongly but I cope. One day I'll work out how to stop that I guess but I think it means a much more rigid frame.
one further question, i live in a costal town that is quite windy - would the sun shade work as you have done it without extra securing? (i guess what i am really asking is if it is windy or calm where you are
***********************************
hey skyblot, thanks heaps for the AUD price (mine was just an internet search) - and yes i think you are right with essentials.
the accessory mount seems to be the way to go - as i think the accessory mount and the grab handles bolt to the same place (thanks for clearing that up for me). also if i change my mind about the front guards and decide to get them in the future.
one question, the front mudguards are a bit pricey and with what you have written, it sounds like the front mudguards are a lot more secure (newer design) than what zebee said. ???
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Re: greenspeed GT20 questions
Postby skyblot » Tue Nov 09, 2021 11:03 pm
There is a new accessory mount these days, it is far more robust than the original one. The original one had a metal strap and hidden screw arrangement that looks super neat and is ideal for computers, lights etc but simply not man enough for mudguards. The later style uses a proper machined clamp and 2 M6 screws to secure it to the accessory post, probably why it's $52!
I don't think the design itself has changed over time though.
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Re: greenspeed GT20 questions
Postby zebee » Wed Nov 10, 2021 9:51 am
Was a bloke in Sydney had something similar and he made a frame using kite fittings! But I don't recall the design.
The issue is that the ally poles, even if braced at the back, will twist and flop at the front given enough force. I have pondered something rigid coming up from the wheel mount area and might play with that a bit. Main problem is how to securely mount it at the base, meaning have to make some kind of socket that can use the bolts down there. It will get a lot of twisting force.
I don't think a decent cantilever brace can be made from the seatposts,again the problem is twisting forces.
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Re: greenspeed GT20 questions
Postby zebee » Wed Nov 10, 2021 9:53 am
ooh, that sounds interesting. I still have all the mudguard stuff so do I want to spend $100 on decent guards? Answer is yes!skyblot wrote: ↑Tue Nov 09, 2021 11:03 pm
There is a new accessory mount these days, it is far more robust than the original one. The original one had a metal strap and hidden screw arrangement that looks super neat and is ideal for computers, lights etc but simply not man enough for mudguards. The later style uses a proper machined clamp and 2 M6 screws to secure it to the accessory post, probably why it's $52!
So who in Oz has these, these days? Or do I have to order from GS's new owners in the US?
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Re: greenspeed GT20 questions
Postby skyblot » Wed Nov 10, 2021 10:18 am
Support your local dealer (if you have one...), RSC in Canberra is probably your closest. I'm in Brisbane but that's not terribly convenient either. Trisled will sell direct though.
Make sure they know you want the 2 bolt clamp style!
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Re: greenspeed GT20 questions
Postby zebee » Wed Nov 10, 2021 6:09 pm
If you are making a more rigid frame just pay attention to easy take down.
I usually remove the sunshade if I get a flat on the rear because turning it upside down makes getting the rear wheel out easier.
Re: greenspeed GT20 questions
Postby Nazar » Thu Nov 11, 2021 4:05 pm
with the sunshade, i think kite poles at the front (down to the frame) then occy straps creating an X (at the front) should stop the twisting. but hey this is just theory!
not sure if i should put this here (or create a new thread) converting it to an ebike - (hub rear drive) is there a way of having a throttle and a PAS system? , (i know they make them with both, am thinking throttle on the accessory pole) i am not sure a throttle would work on this type of bike? throttle would only be used on rare occasions.
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Re: greenspeed GT20 questions
Postby skyblot » Thu Nov 11, 2021 9:03 pm
Most if not all, aftermarket DIY e-bike conversion kits include a throttle, and a pedal assist sensor. Check the requirements in your state and locale, as the federal legislation was amended early this year and makes throttle control illegal (States seem to be able to over ride the federal requirements...)
Also...WA limits e-bike width to 660mm (or it might apply to all bikes but the way it's written is e-bikes):https://www.transport.wa.gov.au/activet ... safety.asp
Bicycle Industries Australia is lobbying the WA government to change this law.
E-kits work well on trikes. My personal preference is the Bafang mid drive, but others like rear wheel hub motors.
Re: greenspeed GT20 questions
Postby Nazar » Fri Nov 12, 2021 1:12 pm
thanks, had no idea the legislation had changed, seriously??? they changed the width to 660mm? gripe here - why do we have a stupid restriction of 250watts? as well as speed restrictions - doesn't make senseskyblot wrote: ↑Thu Nov 11, 2021 9:03 pmConverting to an e-bike...
Most if not all, aftermarket DIY e-bike conversion kits include a throttle, and a pedal assist sensor. Check the requirements in your state and locale, as the federal legislation was amended early this year and makes throttle control illegal (States seem to be able to over ride the federal requirements...)
Also...WA limits e-bike width to 660mm (or it might apply to all bikes but the way it's written is e-bikes):https://www.transport.wa.gov.au/activet ... safety.asp
Bicycle Industries Australia is lobbying the WA government to change this law.
E-kits work well on trikes. My personal preference is the Bafang mid drive, but others like rear wheel hub motors.
anyway, thanks heaps guys
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Re: greenspeed GT20 questions
Postby zebee » Fri Nov 12, 2021 4:15 pm
My trike was electrified by Sydney Electric Bikes a few years ago using a Bionx. Works well enough. When I bought it throttles were legal they aren't now...
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