Focus JAMc 5

10084 of 18546
(4 people)
utopiaarch
7/27/2017 10:17pm
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Related:
Bike of the Day
FOX
Shimano
Maxxis
Focus
Parts
Brand
Model
Additional info

Parts

Frame
Focus Bikes
JAMc
Frame: Focus Bikes JAMc
Rear Shock
FOX
Float DPS
Rear Shock: FOX Float DPS
Fork
Fox
36 Talas 160
Fork: Fox 36 Talas 160
Brakes
Shimano
XT
Brakes: Shimano XT
Brake Levers
Shimano
XT
Brake Levers: Shimano XT
Shifters
Shimano
XT
Shifters: Shimano XT
Cranks
Shimano
Cranks: Shimano
Chainrings / Sprocket
Other
Wolftooth 34T
Oval
Chainrings / Sprocket: Other Wolftooth 34T. Misc: Oval
Chain
Shimano
Chain: Shimano
Cassette / Rear Cog
SRAM
Cassette / Rear Cog: SRAM
Pedals
Crank Brothers
Mallet E
Pedals: Crank Brothers Mallet E
Hubs
Hope Technology
Hubs: Hope Technology
Front Tire
Maxxis
Front Tire: Maxxis
Rear Tire
Maxxis
Rear Tire: Maxxis
General Info

General Info

Model Year
2017
Model Year:
2017
Intended Use
Trail / All-Mountain
Intended Use:
Trail / All-Mountain
Weight
29 lb 15.7 oz (13600 g)
Weight: 29 lb 15.7 oz (13600 g)
Additional Info
Additional Info:
utopiaarch
7/27/2017 10:17pm
10084 of 18546
5 comments

View replies to: Focus JAMc

c50 johan 1385064431
iceman2058
8 years ago
Bike of the Day July 27, 2017!
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Kramz
8 years ago
How is the oval chainring? They seem like a very good idea, but I figure only a 6.25% increase in efficiency putting a 28-30-32 on my bike. I guess it's better than nothing, but I would like your honest opinion. I guess going 10.625km instead of 10km with the same energy seems worth it.
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Kramz
8 years ago
Yeah, I'm kind of unsure of the math involved, because theoretically when it's helping the most is when your pedals are vertical, and the force is 0 Newtons, which theoretically you'd want to skip that point altogether. I don't really know the power output of cyclists or anything, but an oval chainring is an obvious improvement.
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utopiaarch
8 years ago
I do believe it increase pedalling efficiency, how much? I do not know. But I feel it more constant especially when i do high rpm and it help me go uphill for sure. Just worthed it. And I put oval ring on my downhill rig too
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