that is what they say, but that just doesn't make any sense, especially with 2" tires. I have ridden 50mm drop on 23mm tires, or a 62mm drop on 40mm tires, and both of those bikes sit pretty high. 50mm drop on 2" tires is like a 25mm drop on normal road tires. WTF?
That seems on the high side to me. 52.5mm drop is actually less than what you would typically find on an XC hardtail. Typo maybe? if not the BB is really high on that bike.
The BB drop is from BB to axle, not related to tire. CX bike is around 65mm, road bike 70mm, touring bike 75mm. Depends the geo of the gravel but it's mostly between 70-75mm. 50mm is for track bike.
jeanjacques wrote:The BB drop is from BB to axle, not related to tire. CX bike is around 65mm, road bike 70mm, touring bike 75mm. Depends the geo of the gravel but it's mostly between 70-75mm. 50mm is for track bike.
Well, its related to tire where it matters - bottom bracket height.
I have a bike with 50mm bottom bracket DROP on 23mm tires. Its pretty high. This bike is spec'ed with 700c x 2" tires (29er). That is going to have a crazy high bottom bracket HEIGHT - it will feel like riding a penny farthing. ;-)
FranzAM wrote:I know what "drop" mean and I own a lot of bikes with different drop: XC,CX, DH, track, Enduro and indeed one with "negative" drop
75mm BB drop is for me too low espacially when you drive 650b
Ok, I didn't understand what you mean previously.
Higher bb come from the use of long crank. Today, lot of study show there is no power gain with long crank and shorter one have plenty benefits. With 165 or 170mm and a lower bb you have the best of both world, stability and clearance.
Talking about the right crank lenght will be an endless depate. Imo is crank length selection ultimately down to the rider’s personal needs. Some like it long, some prefer shorter. Depends on your personal issues (with knee or hip rotation, etc.)
The argument that the BB height will be lower when you switch to 650B is kind of silly.
This bike is marketed and sold as a 700C/29er bike with 2.0 tires. If you ride this bike as is out of the box, the BB will be really high.
So if you want a more reasonable BB height, you buy this bike and immediately throw away the wheels that came with it and purchase a completely different set of wheels to make the BB height more reasonable? I can't see the logic in that.
first you make everything possible to bring comfort to the rear end of the bike and then you put 31mm seatpost. And this BB drop. This bike is a mindfuck...
In the next weeks I should get a testbike. Than I can compare it to my CUBE with the long, lightweight and very comfy seatpost and tell you more. 31.6 seatpost diameter is imo due to the dropper posts. And using a reducer sleeve is allways possible.
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