« previous next »
Pages: 1 [2] 3 4 ... 7   Go Down

Author Topic: GPR Exhaust - poor man's Akro?  (Read 19585 times)

0 Members and 1 Guest are viewing this topic.

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #15 on: July 23, 2020, 12:08:35 am »
Motolegends of amazing service motorcycle clothing fame? I love those guys. Wait, these guys?

https://www.motolegends.com/
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Offline CrazyDave

  • Full Member
  • ***
  • Posts: 104
  • Karma: +3/-0
    • View Profile
    • BigBikeMad
  • My K bike model:: K1300GT
  • Modifications and add-ons:: Too many to list
  • Location:: Kerry, Ireland
Re: GPR Exhaust - poor man's Akro?
« Reply #16 on: July 26, 2020, 11:52:04 am »
No, I don't think its them, Matt

Its these guys.

https://www.gpr-motorcycle-exhausts.co.uk/

Dave
Logged
Bigbikemad Channel

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #17 on: July 26, 2020, 02:50:27 pm »
Phew that's what I thought. Moto-Legends need to stick to what they are great at!

Oh I see what you mean, I just ordered (hurrah) and the receipt stuff is moto legends distribution in Notts. Bah, still not the real ones I think.
« Last Edit: July 26, 2020, 03:00:35 pm by Matt »
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #18 on: August 16, 2020, 12:58:33 pm »


2kg in the whatever coated steel stuff. And the old 5kg one:

OK I can't get it right on phone but anyway yes. First impressions are the noise valve is finally feeling like it is worthwhile. General pootering and it's same as usual, mid to wide openings and it blaps away with more 'character'. Tunnels are fun again. Quality was all nice, and I used the GPR pipe clampy section and retired the already rubbish looking BMW one. Will be interesting to see how it ages. The BMW bolt was even bent slightly! I wonder if someone went over 22Nm.
« Last Edit: August 16, 2020, 01:01:15 pm by Matt »
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Offline Phmode

  • Administrator
  • Hero Member
  • *****
  • Posts: 11993
  • Karma: +90/-19
  • I am the evil webmaster, do not cross me!
    • View Profile
  • My K bike model:: BMW K1300S 2012
  • Modifications and add-ons:: Sargent Seat, Powerbronze Screen, Akrapovic Silencer, Ilmberger Hugger, K12S Black Top Yoke, Helibars, Cruise, Centre Stand, Sidestand Extender, Full 3M Film, Barkbusters Hand Guards in winter.
  • Location:: Ledbury, Herefordshire
Re: GPR Exhaust - poor man's Akro?
« Reply #19 on: August 16, 2020, 03:54:25 pm »
Welcome to the GPR club. Maybe we need a new forum...
Logged

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #20 on: August 16, 2020, 04:10:11 pm »
Going through a tunnel it reminded me of I think Tom's (or Bob's) KTM on our 2018 trip, which properly roared at times. So I am very pleased :). Though it's also slightly reminiscent of the R Nine T version of the 1200 engine now too, little ww2 fighter'ee sound hah. I then treated the bike to a bit of ACF50 seeing as winter begins tomorrow.

Then Rae you will be pleased, wax oiled the ply panels.
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Offline raesewell

  • Administrator
  • Hero Member
  • *****
  • Posts: 6039
  • Karma: +56/-5
    • View Profile
  • My K bike model:: Yamaha FJR (2013)
  • Location:: Normanton West Yorkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #21 on: August 16, 2020, 04:58:17 pm »
I knew you would make the right decision in the end Matt  :D
As you know I have been working with wood for many years and it always delights when the finish goes on and the grain pops out.
Logged

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #22 on: August 16, 2020, 07:18:24 pm »
Yes I love that stage too. The amateur laminated work surface I made, was only pine but once I'd got the finish on, in my opinion it looks flipping lovely
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Offline CrazyDave

  • Full Member
  • ***
  • Posts: 104
  • Karma: +3/-0
    • View Profile
    • BigBikeMad
  • My K bike model:: K1300GT
  • Modifications and add-ons:: Too many to list
  • Location:: Kerry, Ireland
Re: GPR Exhaust - poor man's Akro?
« Reply #23 on: September 03, 2020, 09:22:04 am »
Looks good matt. Black is cool.

I'm getting some occasional pops and backfire's on the K1300GT.

No personal comments please. :-[



Logged
Bigbikemad Channel

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #24 on: September 03, 2020, 10:20:26 am »
Cheers. Yeah I think it's a tad loud/rude without the baffle. So come next Wednesday it goes back in :)
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #25 on: December 20, 2020, 03:28:46 pm »
Well.


And I'm not a commuter since owning this bike.

Edit: sorry res is pants ill migrate to whatever it is we supposed to use when at pc.
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Offline Phmode

  • Administrator
  • Hero Member
  • *****
  • Posts: 11993
  • Karma: +90/-19
  • I am the evil webmaster, do not cross me!
    • View Profile
  • My K bike model:: BMW K1300S 2012
  • Modifications and add-ons:: Sargent Seat, Powerbronze Screen, Akrapovic Silencer, Ilmberger Hugger, K12S Black Top Yoke, Helibars, Cruise, Centre Stand, Sidestand Extender, Full 3M Film, Barkbusters Hand Guards in winter.
  • Location:: Ledbury, Herefordshire
Re: GPR Exhaust - poor man's Akro?
« Reply #26 on: December 20, 2020, 03:35:24 pm »
I did say that the finish is nowhere near as good as an Akra or the OE. Mine is black also and the paint was rubbed off on the rear pointy tip when I took it out of its lovely 'protective' bag.
Logged

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #27 on: December 20, 2020, 03:55:06 pm »
Yup I think it was the last trip out a week or so ago. Must have been grit as before I cleaned it today I noticed several spots of precipitation in the same areas. By grit I mean salt of course.

Still. I thought it would survive a bit of that. My... Whatever that noisy bugger other Italian exhaust... The SC Project, that survived fine through years of on and off use with commuting. So I can't believe all Italians haven't heard of our use for salt.

I suppose it gives me an excuse to see what another one sounds like when I get money again.
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Online Matt

  • Administrator
  • Hero Member
  • *****
  • Posts: 2791
  • Karma: +20/-2
    • View Profile
  • My K bike model:: KTM 1290 Super Duke GT
  • Modifications and add-ons:: Oberon slave cylinder, 3D printed nav mount
  • Location:: Berkshire
Re: GPR Exhaust - poor man's Akro?
« Reply #28 on: February 10, 2021, 02:24:30 pm »
Well I emailed the people at https://www.gpr-motorcycle-exhausts.co.uk/ otherwise known as Moto-Legends (not the great clothing shop) with massive Samsung Galaxy S10 camera photos of my poor exhaust.

23rd Jan: Mail sent with photos and nice words and "I hope you can help".

26th Jan: A guy replies asking for "some bigger pics please Matt" [assuming he didn't know how to download attachments]
26th Jan: I reply nicely after taking two more photos and added them inline, full horror size 4032x1908.
...
4th Feb: I chase up asking for some help.
9th Feb: I chase up again via their online form, which says it goes to the same address.

So far, so disappointing.

@chriscanning, you're connected to everyone, can you fix this please?  :winkthumbs:

Edit: photos:


« Last Edit: February 10, 2021, 02:27:24 pm by Matt »
Logged
"Why was the spider disappointed after browsing the web? Because he couldn't find any fly downloads!"
Claude.ai effort at an original joke - 2022

Offline farmer

  • Sr. Member
  • ****
  • Posts: 458
  • Karma: +15/-0
    • View Profile
  • My K bike model:: k1200rs, k1300s
  • Location:: maghera,derry,ireland
Re: GPR Exhaust - poor man's Akro?
« Reply #29 on: February 12, 2021, 06:24:04 pm »
i have the supplied acro and one of my riding buddies has the gpr, both k13s.
i think mine is nicer and sounds better and he says the same... i.e those are the exact same words he uses.
they both do what we wanted them to do and i have no real preference apart from the acro being factory supplied so to speak.
pity about that paint flaking but if you get no joy a coat or two of high temperature satin black will leave it in good shape again.
Logged
Pages: 1 [2] 3 4 ... 7   Go Up
« previous next »