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Kona "Flatbar Gravel"? Build


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I guess tomorrow's rain is my fault, I got a "new" bike. From what I can tell it is a 2001 Kona Muni-Mula and it's in immaculate shape, some dust from being in the garage and the shifters are gummed up with old grease but otherwise it's in great shape mechanically. I still haven't sorted how old the tires are and how badly they need replacement but overall it's solid. Even the fork is super smooth. I've been playing around with making a dedicated gravel/paved path bike and this seemed like a great candidate for my needs and the price was right. 

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Edited by RedRider3141
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I don't know about a slow bike, maybe none of mine are real fast but I think this bike is going to be pretty fun. As of now, I think I'm gonna build it into a 650b/27.5" flatbar "gravel" bike. I use that term loosely because I really just want something a little more efficient than my XC bike on the BCRT and the like.

Today I ungummed the 24yo shifter grease and got it tuned up. Swapped the bars, stem, grips and seat and got a scale weight, 27.5lbs, not too bad. I also test fit my 27.5 rim with 2.25 tire. Fine in diameter, bad on width but probably great for a 40mm-50ish width tire. 

Next up is hunting down some rims and deciding what to do with the brakes and drive train. The brakes work well but I don't think that I'll find a compatible wheelset.  The drivetrain is decent and probably the last thing I'll Change. Considering: 1x10/11,  2x9 or SS. 

 

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  • 4 weeks later...

Got the rear done: 27.5" wheel with 650bx48 tire and mechanical disc brake caliper installed. 

Next is swapping out the fork. I could keep the current one as it's serviceable, fits the 650b just fine and and has disc brake tabs but it's got coil spring that I'm too big for and I happen to have a decent 100mm airfork with remote lockout. 

I'm also starting to test different bar end thingys for additional hand positions. Any advice would be appreciated. 

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Looks nice.

On both of my rigid bikes, I have Ergon grips with the bar ends.  One bike has a wide flat/straight bar.  The other has an Origin 8 Trail Sweeper bar (essentially flat with some sweep).  I ride both bikes everywhere and think that I have a slight preference for the Trail Sweeper base with the grips.

I am currently researching some Alt bars and may be settling in on a Sims Works Ramble Bar, but have not pulled the trigger.

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21 hours ago, St.Bernardo said:

I have Ergon grips with the bar ends

Yeah, those are on my list, overall feedback seems pretty positive across the interwebs. What bar width are you running? I feel like I would need to narrow up to make those comfortable.

 

Right, now I've got a pretty standard Truvativ Bar, but eventually I'd like to try out some Alt Bars. I'll probably avoid drop bars because of the added expense/ complexity of lever pull and groupsets that I'm not interested in but other ones like what you've mentioned or the Surley Corner Bar are interesting. 

Here's a few resources I've been reading on it:

https://bikepacking.com/index/comfort-mtb-handlebars/

https://bikepacking.com/gear/adding-alt-hand-positions-to-flat-bars/

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  • RedRider3141 changed the title to Kona "Flatbar Gravel"? Build

I got the front fork swapped and front mech. brake caliper installed. I also installed some TransX bar ends which seem to be better ergos than the hard plastic ones I already tried.

Been on two rides now and its working well. It's not ground breaking but I got a bunch of PRs on some of my normal segments so I guess it's working. Still a few things to iron out but overall it's been a fun experiment which was kind of the underlying goal for me. In all honesty, I could have just slapped the 650b tires I got on my xc bike and been 98% done. But that wouldn't be any fun. 

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19 hours ago, RedRider3141 said:

I remember when you painted it, did the eBike replace it?

I built the Soma hardtail, then the Heckler replaced it. The Kona rode well but had a VERY short wheelbase and was twitchy.

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So close to being done! Everything on this bike came from Yellow Bike Project except for the curvy handlebar that I bought online. I don't have a spare lock ring for the rear hub and I need to find a chain to wrap around the whole thing. Currently set up with a 38 tooth ring on the front and 17 tooth cog. I had to modify the right side dropout to allow the axle to move for the single speed drivetrain.

 

 

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