edd - Member
Any advice on routing the hose for an XT brake with 180mm rear rotor?
Lots of pics earlier in the thread mate, looks to run down the down tube under the linkage then along the non drive side chainstay.
Chainline this is probably one for you.
So I have been experimenting with the hybrid set up and it got me wondering. Has anyone tried a 29 up front with 140mm travel with a 216 shock in the high position (155mm).
blackec not to my knowledge. We've tried most scenario's but not reducing to 140mm front.
I'd have to think of the angles on that!
I think you'd end up with something close to a 160mm 27.5 std geo at around 77.5 SA and 63 HA by the time you've accounted for half degree 29 wheel lift and then the drop and the change to the std position with a similar BB too.
The question might be why? Can you you tell the difference with the hybrid?
Chainline
Why? Just for the sake of experimenting thought it would be fun to try.
Tried the hybrid initially with two offset bushes and it felt all wrong. Think I met the limit of what I like in terms of slackness. I the replace one of the bushes and it felt good It seams easier to turn the front wheel. with the 29 on both front and back it feels much more physical to turn like you really need to use effort to turn the wheel. where the hybrid turns with what feels like less force. semi convinced hybrid is the way to go. going to do some back to back runs in the new year. to see if it is what I really prefer.
Blakec f you are running 155mm 216 shock you don't need any offset bushes witht he hybrid. just put the chip in the 222 position.
Hi Chainline, what’re your thoughts on this:
Sort of got a plan together to try something new with the g13. Going to up my fork travel and fit a 200x57 shock to give me 148mm rear travel. Plan is to get a set of 27.5 plus wheels and some Maxxis 2.8’s which should correct the higher bb created by the longer stroke shock and fork. There should be clearance in the back for a 2.8 I think? Maybe fit a -2 degree headset too.
I put a maxxis rekon 2.8 in my G13 out of curiosity and it's tight, would say there isn't enough clearance to be rideable.
ah crap, what width rim was that on? I guess maybe a 2.6 on 27.5 run in high might be ok then.
40mm internal. It's because the tyre doesn't sit in the yoke area, the sidewall is where the yoke is joined to the stay which is where it's tight. Even on a narrower rim it would be an issue I think. 2.6 on a 27.5 on a 35mm rim may be ok but you'd be dropping the bb even further.
Chainline, have you decided that the 40’s were not the way to go?
Seems to have been lots of changes since those posts!! Cheers!!
I think I know what you mean Gotama.
Having done some research and calcs I’ve worked out that on 2.6’s the bb will be approx 19mm lower. With a 160 fork the bb would raise approx 14mm and with the longer shock approx another 5. Which is a total coincidence. That’s all calc’d in the low position on the linkage so still 8mm more to get back in the bb height If swapped to high. Gives more options on the set ups people can have who’ve gone down the g13 route. Shame about the plus size though. Would’ve loved to have tried that.
Wookster, kind of. I’ve decided I love the 29 front, mostly as hybrid which take the 40s out of the equation for practical year round use.
I do also prefer the shorter offset.
Something is in the works which will solve those things as such. Have to wait a bit longer for that though.
I’m processing the other Q!
I think maybe my planned next bike will solve a number of these Qs around the G13...you could call it listening...
Thanks Chainline, I did wonder if the was a “special projects” division of Mojo Rising which might be working on certain improvements!
I’ll keep an eye out!
Wookster, always looking at improvements...
One thing settled is the geometry of the Mojo G16.
I should say basic geometry, Always room for tweaks to allow adaption to component configs.
PSA;
Geometron bikes is replacing the demo fleet..
Used, well maintained frames/bikes with 4 year warranty on Frame.
info@geometronbikes.co.uk or call 01600 887550
G13s, G16s and G19s
Give the guys a follow on instagram/facebook too.. geometronbikes, mojorisin66 on instagram and geometron bikes and Mojo Rising on FB
Just finished building up my G13, taken a while but I know it'll be worth it.
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Frame / Geometron G13 (Longer)
Shock / Fox Float CTD (custom 185mm length)
Fork / Fox 34 Performance Elite, 140mm travel
Drivetrain / SRAM GX Eagle
Brakes / SRAM Code RSC, 200mm rotors
Wheels / RSP Chosen hubs, Alex Volar rims
Tyres / Specialized Hillbilly/Butcher Grid 2.35”
Bar / Truvativ Descendant 800mm
Stem / Truvativ Descendant 40mm
Grips / DMR Deathgrips (Thin/Soft compound)
Headset / Superstar Components Slackset (-2º)
Seatpost / RockShox Reverb, 170mm drop
Saddle / Fabric Line
And yes, I know about the tyre logo positioning - the wheels came with them fitted like that and I just want to get out and ride it rather than faff!
Tasteful! Very nice looking.
tis lovely..
Hi all,anyone care to share there fork and shock settings,I’m curious to see if I can liven mine up a touch,it’s a first generation geometron with x2 and fox 36rc2,just feels a touch flat and I only had suspension serviced a couple of months ago,cheers
Very cool Sim!
Maca
Base settings
Fork 180mm travel no neg bump stop, 2 x blue spacers
Pressure to suit but 20-25% sag
HSC 22, LSC 22 (fully off!) rebound 13
Shock max spacers pressure to suit 20-25% sag
HSC22 LSC22
HSR17 LSR 3
If you can’t get what you need from it have a chat with Paul to talk options.
Thanks chainline,will try those out
Hey guys! Happy new year!
This might not be the right thread but I’ve got some questions regarding my Nicolai GPI Pinion Gates Carbon drive.
Crazy idea, but was wondering if it’s possible to convert the pinion on the GPI to use a chain as compared to the gates belt.
Am just curious to see if it’s more efficient to pedal using the chain or the belt.
Thanks in advance!
Crazy idea, but was wondering if it’s possible to convert the pinion on the GPI to use a chain as compared to the gates belt.
I hope it's not crazy, I may well covert mine to chain when the belt etc wears out. As far as I can see the Pinion chain tensioner should bolt on in place of the belt tensioner. You'd need to get sprockets that are similar size to the Gates sprockets (diameter, not number of teeth) so the chain doesn't saw through the swing arm or mess with pedalling. Can't see why it wouldn't work fine. You should check with Nicolai before spending any money though
A not very good picture from yesterday of mine. Will try to get a better photo on another ride. Loving it at the moment, largely just feels normal, but is harder to manual and wheelie than my last bike (a Lapierre Spicy). Still only three rides in though so will reserve judgement until I've had more time on it.
It's a 2015/16 long and I'm 5'9".
[url= https://farm5.staticflickr.com/4598/25690426648_a5f6490c08_z.jp g" target="_blank">https://farm5.staticflickr.com/4598/25690426648_a5f6490c08_z.jp g"/> [/img][/url][url= https://flic.kr/p/F9b9Nu ]20180107_150035[/url] by [url= https://www.flickr.com/photos/33251520@N07/ ]eddkh[/url], on Flickr
Any recommendations for rear shock settings on a G16 with CCDB Air CS?
Only Ion 16 settings on the Cane Creek website, not sure if the suspension curve is the same
Rik, different suspension curve entirely so different settings. Unfortunately I've no idea. Perhaps give Paul a call?
Hello guys,
I have a 2016 model G16, so the non-boost model where the rear pivot runs on a bushing rather than a bearing.
Could anyone please confirm the following:
a) How I remove these bushings (simply with force? Or is there a recommended method)
b) Where I can find replacements from/what size these are.
I had some awful creaking issues a few months back, so I'm giving it all an overhaul and thought it best to replace them.
Cheers,
Craig
It is unlikely it is from the rear bush as they barely move but is possible.
You should ideally press them out. There is a tool you use to press them out. I had some made ages ago. You can ‘tap’ them out if careful but it’s not the official method!
It does mean removing the rear swing arm if you press them out/in with a vice. Might be possible with a beefy G Clamp, I’ve never tried that one.
GeoMetron bikes will be able to supply replacements.
I might have some new ones in my toolbox. I’ll check.
Just seen the slight price rise in the frames. Fair enough as the prices have been static for a good while. On the other hand it’s a few more months saving added to the time line!
Still time to get fit and thin enough to really enjoy it I suppose!! 😆
Wookster, the Euro and production costs have finally hit I'm afraid, but I think it's still good value for a premium product.
Agreed mate no problem with it! Just puts the “push the button” date back a few months!!! 😉
Hi got a few build questions for those of you in the know,
Is anyone running SRAM shifters mech etc on the Geometron? I understand that Chris Porter prefers Shimano stuff as you can turn the mech off.
Also I'm sure I read somewhere that the bike was designed to run a 32 tooth front ring as a minimum? Is that right, or am I having a moment? Cheers!
Hi
I moved my build kit over from my previous bike onto a g13.
Gx mech/shifter/10-42 cassette, xt800 boost cranks with a 30 tooth chairing.
All works brilliant for me.
Also I'm sure I read somewhere that the bike was designed to run a 32 tooth front ring as a minimum? Is that right, or am I having a moment? Cheers!
I'm running a 28t ring, works for me (2015/16 G16).
Great thanks all, current have a 30 front ring and an 10-42 cassette and really like the set up, so that's a positive!!
The G16 is designed around a 30-34t ring. The change is in the antisquat/feedback level.
Use what works is the key but its all front/rear gear relative so not as simple as just the front ring.
I have used Sram on GeoMetron, all works not problem, lots of examples out there.
Chris does prefer to run without a clutch. I do too, but not using the clutch wore out my xtr cage pivot in the end!
You can turn off the the Sram clutch with a manual hack if you want.
The suspension does work noticeably better but whether that is quantifiably better or if it matters at all to us mortals without a bar mounted stopwatch is much more debate-able..
For me the difference is very marginal with the clutch on or off. I mainly notice that my Shimano gears change more smoothly without the clutch but the racket it makes Downhill is horrendous. It feels like the mech will tear itself apart and both times I wrecked a rear mech recently the clutch was off and the mech wrapped itself around the spokes. I have found the best compromise is clutch on but wound off to the lightest setting.
Can anyone advise me on shock mount hardware?
I've just spoken to Mojo and they've confirmed that the front mount is 22.2 M8 and the rear is 21.84 M8.
I'm running a Rockshox Monarch and I cannot for the life of me find a Rockshox 21.84 mount. I also can't distinguish between the front and rear mounts that I've taken off the bike - when set on a flat table, they've totally flush with one another (supplied as stock from Nicolai). Is it possible that they sent the bike out with 22.2mm mounts front and back?
Do 21.84 Rockshox mounts even exist?
Thanks as always.
Nicolai have details here
http://www.nicolai-bicycles.com/shop/techsheet
Which suggests 22.2 front and rear for the ones I checked.
Sorry I should have clarified - I did check the tech sheets etc. but had been given conflicting information from different sources.
Mojo said 22.2 / 21.84 and then Nicolai got back to me and said both mounts were the same and either 22.0 or 22.2 (they weren't sure as they changed the specs at some point and couldn't tell which would apply to my frame!) Obviously this was less than ideal...
Anyhow, I ordered x2 22.0 and as far as I can tell (flush on a table with original hardware etc.), that fits fine.
Just wondered if any of you guys had similar experiences/could shed more light on the situation. My frame is a 2016 G16 bought direct from Nicolai.
I think this has caused a little consternation in MojoR/Geometron bikes! Mine is two different sizes.
