Bigmagoo. I am similar height to you and ordered a mojo g16 XXL to run 29 wheels. Bb height and angles will need to weight until it arrives and is built. But I am expecting something similar to what chainline has already posted
Blakec , happy days! I would love to hear how it works out for you . I
realise that there is talk else where on this forum about the mojo g16
and 29 wheels ,but not on a xl/xxl as far as I know (will read through again). What sort of time for a xl/xxl frame from mojo.
Bigmagoo Mojo usually have stock, but I'll check. angles will be exactly the same as I have posted per each config if you use my recommended BB height but that's within your gift you might prefer it higher or lower.
You can read across from my Longest to the XL and XXL
If you do want one then a test with Mojo at BPW or similar is a no brainer as the cost just gets taken off the frame and you get exactly the setup you want off the bat.
At your height I'd say you should try both XL and XXL to see which you prefer as before really I think your riding style makes a difference. The natural suggestion would be the XXL.
I think I'd probably recommend the e-bike 36 fork for someone of your size too for the added stiffness.
Bacially you're looking at a 62 deg HA,~ 76.5 SA and ~350mm bb height (depending on tyres) for the 155mm version and similar for the 170mm with 2 offset bushes but slightly slacker HA and SA.
Right....
I've sold my DH bike and my every day hardtail is in bits. I need a bike and I'm looking at the Geometron again. I want something for slogging around the Peak all day and occasional uplift days. Plus I want something I can take to Whistler next year without kicking myself for selling the DH bike.
I'm an ex downhiller who loves it fast and rough but I'm trying to embrace pedalling. I've recently moved to Sheffield and just started exploring the Peak District. This is why I think I might be better off on something lighter and more sprightly. But then I'd feel like I needed another bike for when I want to get 'gnarly' etc.
I don't want to mess around with angle headsets and offset bushings and stuff. I want all those decisions made for me! Is anyone riding a 'normal' off the shelf G16 without any extra mods?
Can anyone tell me why I shouldn't buy one? I haven't read a bad word about them and I'm getting suspicious. I want to know what the downsides are. Why should I not just buy the new Enduro 29?
Anyone know who the Sheffield Geometron rider is? I've seen it on the move at high speed and couldn't grab him for a closer look!
Ok, not sure who the Sheffield rider is. Lots of people riding a std GeoMetron!
I am mostly. I just like the 29 front, which in 155mm setup requires no anglesets or bushes to use a 29 or 27.5 rear wheel if you felt like the 29 version was better for longer more pedally rides or indeed just preferred it.
Haven't used an angleset on a G16 since we introduced the 16/17 with 62 HA with the 180mm fork.
The most popular setup is still std geoMetron with 27.5 front and rear.
What are the downsides, erm, its 2lb heaver than a carbon bike. not the cheapest frame out there.
Thats about it.
You can build it to about 30lbs all up with light wheels and tyres or 31.5lbs with stronger wheels/tyres, incl pedals.
Its likely to outlast a nuclear attack.
For £200 you can tray any permutation you like and get the attention of a suspension and setup specialist then get it deducted off the cost, best investment in deciding if it's for you.
The weight is not an issue in my book and I'm old and not that fit!
Ok, ok. I want one. I think.
I really, really need to ride one. No way I can get to south Wales for a proper demo any time in the near future.
In the meantime, if I see that local one flying past again I'll give chase. Let's see if I can catch him on my 26" Bfe.
A guy I know has one but he's no longer in Sheffield, hasn't been for a year or so.
Thank you Chainline for your response. I am going to look into a trip over for a demo , still concerned about the 350 mm bb height on the g16 and/or the slacker seat angle on the g13. I will give the mojo a shout today.
What's the MTB company that used to recommend asymmetric wheel sizes based on a riders height?....i always liked that idea, made sense to me.
My own experiments of putting 26 inch wheels in the back of 650b bikes has worked well, it drops the BB, and further slackens out the front, in fact it's how I'll be running my bike in the Trail Bike category of next year's BDS.
Liteville us4d do thar.. was based on rider height although poor tyre clearance was a part of it too
I've got the angleset on my G13 as per Chainlines advice. It makes a fun bike even faster.
Well worth the upgrade. Just mulling over that coil shock now.
So, all you folks with anglesets, what head angles have your bikes got now? Mine is running 64 degrees, and I'm intuiged to know how slack you've all gone, and how it changed the ride?
Generally recommending getting to 62deg as a balance of slack and not requiring extra attention to lowers servicing to keep the fork running sweet.
-2 on a G13 brings it to 62.5 and a 77 seat angle with a 335mm BB. Spot on. 62 for the LT version with 150mm front, 148mm rear.
Pre 2016, 73mm BB G16s with a std 63 HA with the 180mm fork benefit from a -1 headset in my opinion.
How does it change the ride. 63 and below gives a noticeably quicker steering response and corner initiation at speed due to the increased flop, it pushes the front further out and allows significant weighting to drive grip on the front and carve with a reduced risk of tucking the front.
Not everyone likes the slow speed flop/rapid drop or turn. You kind of let it turn and stop it rather than turning against resistance (its how I think of it)
The 29 front with 44mm offset at 62deg balances that out Vs the 27.5 interestingly and i think creates a really nicely weighted, progressive and responsive front even at these very slack angles and mid offsets.
At the point of hitting the button on a bike here , just stressing about the bb height on the g16 with 29 wheels ,is 350 mm the lowest it will go, I am coming of a bike that was 340 mm and loved it . My question is, will there be a change for the 2018 models on the geo ?
Like most other brands there is a compromise on the bb height to accommodate both wheel sizes , any advise would be much appreciated.
What was the other bike?
I wouldn't get too worked up about the static BB height, the G16 has a bit more travel to get through anyway. The 29 wheels, front centre and chainstay will all make the bike more stable. The right head angle and BB drop will both make it easier to turn.
You were talking about going "over" to Mojo, if you mean over from Ireland I've a G13 with a -2 angleset and an original G16 you could maybe try.
Hello Shandy , the other bike was a mega290 and a stumpy 29 , I'd love to get a look/ spin on those bikes , I'm based in Bangor . I think we have a mutual friend ,Belfast bike repair .....
bigmagoo,
to save trawling through the whole thread.. I've tested it, as has Chris with several BB heights.
Based on my past experience with LT and slack 29ers and designing the Ion15 I expected taller BB height than the 27.5 with 29 wheels to facilitate side to side manoeuvrability and aid braking weight transfer.
Chris convinced me not to do that initially as he reckoned the BS BB (335mm0340mm) the same as the 27.5 would be the daddy.
So I was riding with the lower BB (It is easy to configure with 1 or 2 bushes, depending on preference) and switching between the 29 and the hybrid. I found I was having to steer the 29 at the rear with my hips in tighter corners and initiating turns and wasn't keen on that. We tried messing with the suspension/rebound trying to find something to take the feeling away. I even wondered if it was to do with the oval ring.
I then decided to revert back to the higher BB at 350mm. It was a transformation, much nicer, more neutral feel all round, I didn't feel it was hard to get stopped and never gave the side to side agility a thought.
As mentioned by Shandy, Chris and I think this is a lot to do with the dynamic ride height and the steering axis. No definitive answers but the result of the higher BB for me was a 29er I enjoyed riding rather than one that frustrated me.
The GeoMetron does sit into its travel and then hit quite firm support at the sag point.
Interestingly 350mm delivers the same BB drop as the 27.5 version.
Summary is if you want to drop the BB you can get it to 340mm in 155 travel setting. That low isn't possible with 170mm rear travel. you can deliver 350mm with the 170mm.
In terms of will the geo change. If I was being picky I'd increase the SA to 78deg static, but it would make no difference in the real world.
At the point of hitting the button on a bike here
I'm there myself. Just struggling to part with the cash until I've at least sat on one. Not sure what size I should be on.
Thank you Chainline, great information ,I just need to get it bought.......
Cheers
Get her bought Dave, i really want a go on one 😀
where abouts are you sharkattack?
Im Stamford Lincs with a medium G16 if you want sit on one
Im Stamford Lincs with a medium G16 if you want sit on one
I'm in Sheffield mate, thanks for the offer.
If you want to come and sample any of the many, many local delights I'd be glad to show you around. As long as I could take your bike through a few jumps and boulder fields 😉
I think I'd want a medium (Longer). Even if I'm not going all out size wise, it would still be vastly longer than my last DH bike and I didn't consider that thing slow at the time.
I'm also confused about colour. I wanted to build the blackest bike of all time. Completley de-stickered, logo free, goth chariot. But some of the shiny alloy ones look amazing. I might put a little colour in my life.
Isn't sharkattack in Sheffield too?
You should club together and time share.
Isn't sharkattack in Sheffield too?
Oops...Sorry that was me.
Accidentally reactivated an ancient account on a work computer! Not surprising, I am in a bike shop.
Confusion over. Yes it was me that wanted to build a Goth bike.
When I tried one (albeit just round the car park) the large felt perfectly normal despite me being a few inches shorter than its intended rider.
If I was dropping that much cash I'd have to go try the sizes out or I'd be always wondering "what if"
cheers for the offer sharkattack/tomm, quite busy over the next few weeks though.
i went for blacker than black and wish I had gone for a colour now as the anodising is a pig to keep clean, so I dont bother:-)
sofaking, use something akin to WD40/GT85 on the ano, works a treat. Or the 'quick detailing' fluids they use on cars/tyres.
Hi chainline. yes. i have cleaned it a few times with a light oil, but seems like a bit a pointless excercise 🙂 so i just keep seals etc nice and clean
Out of interest chainline, what size of bike does Chris ride, is it a xl or Xxl?
Must admit I am toying with the idea of building a G19 perhaps with some 180mm 36s.
Use it as a DH bike I can cruise back up the fire road.
Must admit I am toying with the idea of building a G19 perhaps with some 180mm 36s.Use it as a DH bike I can cruise back up the fire road.
I'd rather have a full bore G19 with 40's and a dropper post! Considering some people are running G16's with 40's anyway.
The G19 looks amazing. But I've just sold a DH bike and I need to resist going down that route again. This is a very smart looking bike...
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G19's are lush, but are a lot shorter than the G13/16 bikes. They're long for a DH bike but not for a trail bike.
Must admit I am toying with the idea of building a G19 perhaps with some 180mm 36s.
Use it as a DH bike I can cruise back up the fire road
Not a bad idea......one at the weekend would'nt fit on the uplift trailer 😐
one at the weekend would'nt fit on the uplift trailer
I just heard this the other day. Someone said the uplift at Revolution turned him away with his extra longest G16 because it wouldn't fit.
That would be a bummer. It's a long way to Wales to realise you wasted your time and money.
I've got an uplift day booked at BPW in November and I'd be on at least a Longer G16.
The G19 and a longest G16 fitted.....just about and with a extra strap.If it won't fit on the trailer then there's not a lot they can do really.The uplift road is steep and pretty rough.The bikes have to be secure.
Don't know what trailers BPW use.
I've a long/small with 2.3 tyres on 31.8 internal rims and always fitted on uplift trailers but it is always a squeeze. I think uplifts are going to have to look at tweaking their trailers as bikes get longer and tyres wider
Problem being you've got to accommodate small sized 26" wheel bikes all the way to (shortly) 29" xl downhill bikes.Ideally with it not taking ages to load them each time.
And it not costing ££££'s to adapt already bought trailers.
I understand the problem, I've the same problem getting my bikes and my other (4'11") half's bikes on the car 🙂 but I'm only 5'8" and there are some lanky people out there wanting 2.5, 2.6 or even 2.8 tyres on their bikes.
I've had my Longest on at least a dozen different trailers since I got it. Most of the proper set-ups have bolts or straps to adjust to the different wheel sizes. After that if everyone loads their bike in the same place every time it all runs smoothly. BPW you could be using a different trailer every time but they have them set up so the longest bikes always go closest to the front of the trailer.
Chris uses his at BPW.
Chris is riding an XXL by the way but wants to do some XXL XL back to backs.
The G19 has a slacker ST too. They didn't take up our recommendations unfortunately.
You can do just as ku h on a G16 with 40s at 170mm as a G19 bar WC courses and Jacob Reading did those initially.
KU H?
So the G16 can get to the same geometry as the G19? The chainstays are longer in the G19 and the reach longer on the G16. What's the impact only either on handling?
I've preferred my G13 slacker with a shortened reach of the angleset. This is why the G19 intrigues me.
Chainline, what is he's generally feeling about the xxl, and why the feeling to test back to back with the xl. When will the 2018 models be available?, sorry for all the questions.
chain line? hi been following this thread regarding the 29er g16 I'm definitely interested. so am i right in saying if i have my fork lowers swapped to 29er lowers and travel adjusted from 180 to 160, and put 2 offset bushes on my 170 travel shock i can run it as a lt 29er with the same bb drop as currently is as a g16 mojo special addition? if so how does it compare in trail to trail feel, faster, easier,slower harder? i have no idea as i have no experience with 29er bikes. must say i love the bike as is and don't want to embark on a path if it is going to upset what i have. oh one last thing, whats the deal with the angled headset and why? many thanks al.
Sharkattack, my g16 longest hybrid fitted on BPW trailers, but only on front half. If you are back if queue then chat to the peps in front or call out to the driver as he normally helps load bikes.
BIGMAN, KU H? - dodgy typing on phone. should have said as much..
bigmagoo - Chris is only just 6'1" the XXL is upsizing considerably relative to Chris's size. As ever he is seeing the effect, pushing the boundary to see what too much or too big looks like, is it faster, is it slower etc.
alheginbottom - yes thats what I'm saying except for
The BB height isn't quite as low as the original Mojo special 29er, but in my opinion it works better at 350mm.
How does it feel. It's personal. It's a great 29er. If you make the changes on the front you can then experiment with a 27.5 rear and just use one bush in the shock. That set up feels very close to a std 27.5 180mm GeoMetron but with a slightly different steering feel and initiation (I like it)
The 29er is slightly harder work to manoeuvre than the 27.5 version in my opinion, no surprise there, it's an individual view as to whether it is better or not. I'd borrow a 29er rear wheel to suit if you can or choose a cheap one initially to see. swop between that and 27.5 rear back to back. changing the wheel and the one bush takes less than 5mins total if you have a cassette on the wheel. slightly long er if not but not a long job.
Best done on a single trail you know so the differences are obvious. Basically the hybrid turns tighter, more naturally with less effort than the full 29.
BIGMAN, it's hard to say its less reach as the angleset also changes the relationship with the front wheel and how you drive it.
you can set up the bikes one size apart to a very similar cockpit with either a reach adjust headset/stem and bar roll, hence my Longest has the same cockpit as my previous longer, just the bike itself is longer.
You could size down, set the cockpit up to be very close and buy the longer chainstay chip if you wished..