Glad you're still liking it duir
Nailed the setup on this now after some testing, absolutely loving it, so much confidence, pedalling a treat, feels lively and you can just push the front so hard without fear. Most surprising is how you can attack steep tight stuff.
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Modified Mojo Nicolai GeoMetron Longest
That looks ace, CL
I owe you some measurements too, will get those this weekend, had a bloody mental week.
Chainline, what are the crucial numbers then?
It has a lower TT/ST than previously. The revised Longer frame has a 450mm ST, the Longest a 470mm and a new XL model 490mm, the same as the previous Longest. The Long is unchanged.
This bike has a 450mm swingarm, to allow for a 222 x 70 shock. This allows me to run 175mm of travel at the rear with a nice curve.
the rear shock is tuned to replicate the feel of the 155mm bike in terms of pedalling and pop. It has been very successful and we can set it up easily to feel more like a DH rear or like the standard bike with much more pop and a livelier feel.
The fork is tuned to match the rear.
The swingarm allows this change without any changes to the overall geometry or BB height.
This bike is -1deg compared to standard
I am loving it, fantastic grip and confidence, turn is great, even on the brakes, the suspension matches superbly it's just there and does its job.
Oh chainline, why did you have to post this!!
I've been wondering about a longer swingarm and a bit more slacker head angle after swinging a leg over the geometron DH bike.
The option is there Paul J. You can order a frame set up like this.
There are various options to set the front up with different trail/HA combinations which change the feel.
I love the longer swingarm...
Geeky fact which may or may not be of interest, but if you draw a line through the pivot on the downtube and pivot between that link and the seatstay pivot by the shock, and then another line through the pivots at either end of the chainstay, the point where those two lines intersect is the virtual pivot point aka instant centre.
If you then draw a line between the rear tyre contact patch and the virtual pivot point, the steeper the angle of that line (vs the horizontal), the greater the brake anti-rise. The greater the brake anti-rise, the more the rear suspension stiffens when braking (but the less the bike rocks forwards under braking, so zero anti-rise isn't necessarily ideal).
So a longer chainstay will give you more braking grip (as well that the other effects).
I had to read that about 3 times 😉
It's easier with a picture. 😉
Skip to the 1 minute mark on this.
That's why single pivot bikes always have less active suspension under braking and also why short link four bar bikes (VPP, DW, KS, Maestro, Zero etc) tend to be more like single pivots than four bar in their braking behaviour.
Linkage blogspot did a good analysis of the geometron characteristics recently. The std bike not this incarnation, but this I would expect since it was designed by someone with a very specific goal in mind in relation to the shock used, rather than compromising across shocks.
http://linkagedesign.blogspot.co.uk/2016/04/nicolai-geometron-2016.html?m=1
This bloody thread just will not go away. I've just been sitting on the hardtail in the garage bemoaning my rigid rear end and wishing I could ride like a monster truck again.
And then this appears,
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sharkattack. Oh this can indeed be ridden like a precision monster truck 😆
This is a good article on Mojo and the development of the GeoMetron, pretty interesting website too.
http://radventure.cc/mojo-nicolai-geometron/
Is this just an advert/marketing thread now?
Is this just an advert/marketing thread now?
I suppose it is mainly of interest to people who own one, or are considering buying one, with the occasional person just objecting to the whole thing.
Wrecker, No, I hope its a source of advice. I have been involved with some of the development aspects of the bike, ride both the GPI and standard versions, am and will continue to test new combinations of angles/setup and providing feedback to both Mojo and Nicolai on peoples experience.
It is a thread about this bike, it's history and future I hope. As such articles written about that are hopefully of interest.
I have found it very interesting and informative. Not my cup of tea but I can still appreciate designs which are actually pushing something different and using real world feedback to develop a product even though a lot of people think it's pretty out there.
It's a great thread. I'm looking forward to more pics of the most extreme trail bike available atop Lower Cliff 😛
Scruff, I can probably provide that. it's still a close by trail centre I can take my girls to an ride with them that stands up to weather. I also know it quite well so it's a good benchmark for testing, although I use FoD and Staunton for that a lot lately as you can get quite a lot of varied gnarr in for a short if steep pedal back up the hill and the surfaces are mostly natural.
[i]This is a good article on Mojo and the development of the GeoMetron, pretty interesting website too.
http://radventure.cc/mojo-nicolai-geometron/ [/i]
Cheers Phil, we're pleased with how it's turned out
Good review from Seb, sums up most owners views I think. I have a few things I'd add but nothing new there
Finally frame ordered 🙂
Finally frame ordered 😀
Well done!
Pics when you've built it jes. look forward to your feedback 
Will do 🙂
Frame has arrived, that was quick 🙂
Hopefully picking up wheels today, shock purchased a while back, bit stuck on forks as was looking at the revel but its still not out yet.
Decisions...... decisions <:o)
You bought frame only. Jez, I didn't think Chris was doing that. Interesting.
I had been waiting a few weeks for a quote from LBS who were dealing with mojo, chased and still haven't heard anything 😕 LBS issue I suspect as they are bit eratic.
Grew impatient so went with the ION GPI version direct from Nicolai in the end, they had a few frames with 15% off, delivered in 3 days.
See if I can tell any difference in the ride once built to the one I tested a FoD.
The primary driver for the purchase though is pinion gearbox, and it was a added benefit that the ride felt very similiar to my Intense SS1 which has quite a steep seatube angle.
Not sure how much the ION version differs to mojo incarnation?
Hope that clears things up 🙂
I got the impression that mojo dealt direct not through lbs and in one of the interviews they do mention that buying the frame from nicolai direct does defeat the object but I'm sure even at 75% of the package it'll still be awesome
Ion version is exactly the same as Nicolai version. The main change is the use of the 180mm fork but a high A2C fork/spacer or angleset can deliver the same angles. My GPI is a Nicolai (There isn't a Mojo version) is just running a 180mm fork and -1 angleset. The 180 runs at 570 A2c.
The std angles (63.5deg in low) are with a 559mm a2c 170mm fork.
It is possible to go through LBS now. LBS can contact Mojo and discuss becoming a dealer. Leisure Lakes have done this and now provide a build and demo's too.
I am still doing demo's if desired and not squillions of miles away, although even those too if its a good riding spot 😆
My bike is available to demo or I can get hold of a demo of the other sizes/setups via Chris.
My bike set up is currently 180mm front /175mm rear (222 x 70mm shock, 450mm swingarm), 61 HA, 77 SA, 1345mm WB, 526mm reach and 656mm ETT with a 30mm stem.
This is currently on the Leisure Lakes site. It looks obscenely nice.
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Nearly a geometron and designed by Phil aka chainline
Playing in the backyard today...
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And a few weeks ago in Torridon
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http://i800.photobucket.com/albums/yy285/kbrembo/1-IMG_5447_zpsc3b7bcmr.jp g"/> [/IMG][/URL]
Interesting Kbrembo - how is it with the Boss rather than Fox suspension?
That blue looks really nice
I spent a lot of hours agonising over that colour combo. And its lovely wth BOS too. Geometry is very close to GeoMetron.
Chainline,
What is the best source for gates belts for ION GPI? I do not how but I snapped one on my bike.
Those geometry numbers on your new monster truck look very familiar chainline!
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SImilar duir, slacker and longer travel at the back, longer swingarm.
Opinions below based on 30km of riding by an unrepentant hardtail rider
I rode Chainline's Nicolai Geometron Pinion bike last night for a couple of hours.
The bike overall is amazing.
The rear suspension feels amazingly supple probably due to the very low unsprung weight.
I rode the Longer bike and it felt "normal" and would like to try the Longest bike.
The amount of front wheel (and overall grip) is freaky.
Cornering is something else, so planted!
It climbs surprisingly well for a 34(ish) pound bike. (that about right Phil?)
I wasn't super stoked on the gearbox for the following reasons (in no particular order):
1) Drag, it does feel a little draggy.
2) Shifter, it's not as good as a trigger shifter but it's not that much of an issue. You may feel differently.
3) You have to back off a lot in terms of pedal pressure to get it to shift. That was annoying.
4) There was a lot of lag as they gearing engaged, this was the big one for me. Apparently the bike I rode had a king rear hub, you can use a fixed rear hub that helps fix this issue.
5) Q factor, its wider. You might not care, it felt slightly odd to me, but I would get used to it I'm sure.
I'm wondering if I can sell a child or kidney to be able to afford one...(but with a normal drivetrain...)
you can use a fixed rear hub that helps fix this issue
I don't think Pinion like you doing that and a chain that doesn't stop when you stop pedaling may be a bit of a safety concern. I'd love to try a gearbox just so I knew what it was like, the idea seems such a good one...
Edit: or a belt rather than chain
Thanks BillOddie, I'm sure you can have a spin on the normal one when I've got the new one built up 😆
and yes its about 34.5lbs now I have tyres on it that don't self destruct at the sight of trail!
Man, that raw one above is lovely.
