Leah

You stated wrt tires " Both bikes have Velocity Quills, set up tubeless, 
but the Racing Platy has 42mm Ultradynamicos and the My Little Platy has 48 
mm Gravel Kings."
If both bikes are 650B, then the Angular Moment of Inertia is slightly 
higher for the 48's (larger radius, tires weigh more), so the 48s 
accelerate a little slower vs the 42's
If the 42's are 700C, the Moment of Inertia for the 42s is higher than a 
650B (larger radius) and the difference in acceleration would be less.

You stated wrt to front end shaking  "The front end feels a bit shaky when 
I stand and pedal, another thing I don’t understand. These are Albatross 
bars and I have Billies on the others. Also, this bike has a front rack. 
Maybe that’s why."
Both bikes have almost identical trail and wheel flop (assuming fork rake 
is the same since they are both stock Platy's) and the high flop causes 
side to side motion which is amplified by front weight.   So if the other 
bike has NO front rack, then the "shakiness" may be the 'amplified" side to 
side motion.  Not sure if you notice this only at low speed when climbing 
or when riding around the neighborhood at low speed (generally < 6 to 8 
mph).    High wheel flop is the downside of high trail.
If the new bike bars have a shorter lever arm to the stem, then you may be 
overcompensating the side to side motion compared to the other bike

Hope this helps.   I think you did a superlative job on this new bike, 
figuring out everything in advance.

John Hawrylak
Woodstown NJ
On Sunday, May 26, 2024 at 8:55:44 AM UTC-4 Bicycle Belle Ding Ding! wrote:

> I’ve had so much fun putting the first 50 miles on my new bike. I love 
> looking at it and wish I could see it when I’m riding it. The spokes do 
> gleam in the sun as the wheels rotate, which thrills me. I don’t know 
> anything, but it feels to me like my 700c wheels are faster than these 
> 650b. I am not slow on them, but also I would never use this bike for a 
> club ride if my other Platy was in the shop. Both bikes have Velocity 
> Quills, set up tubeless, but the Racing Platy has 42mm Ultradynamicos and 
> the My Little Platy has 48 mm Gravel Kings. Maybe these things are the real 
> differences, I don’t know.
>
> The bike is more compact and manageable but does not feel too small. I’m 
> so grateful for my 81 cm PBH, which allows me the flexibility to ride both 
> frame sizes. I have pretty heavy racks on the My Little Platy and yet the 
> bike doesn’t feel THAT heavy. I bet it would feel light as a feather if I 
> didn’t have fenders, racks, dyno and bags all over it. 
>
> The Silver shifters are taking some getting used to. One wingnut handle 
> flops and the other stays in place. The shifting was like butter, but when 
> I tightened the nut (hoping to stop the handle flapping) it made the lever 
> difficult to move. So, I loosened it again and I’m having some ghost 
> shifting. On my red bike, I have Microshift and I never miss a gear. I can 
> hit it perfectly, every darn time. Hoping I get the hang of these shifters, 
> because they come highly lauded. 
>
> The front end feels a bit shaky when I stand and pedal, another thing I 
> don’t understand. These are Albatross bars and I have Billies on the 
> others. Also, this bike has a front rack. Maybe that’s why. 
>
> At any rate, I have a lot to think about, fine tune and to learn. And I’m 
> having such fun in the process.
> Leah
>
>
> On May 24, 2024, at 7:44 PM, Leah Peterson <jonasa...@gmail.com> wrote:
>
> So deep. I couldn’t stand putting a solid color on the spacer when I saw 
> so many oil slick option in 1 1/4 inch. Sure enough, the BMXers came 
> through with the 1 in for me.
>
>
> Sent from my iPhone
>
> On May 24, 2024, at 11:27 AM, Wesley <brooks...@gmail.com> wrote:
>
> You know you're in deep when you're sourcing BMX parts to get the look 
> right. It's funny how the bike world is almost completely separated between 
> BMX and all other bikes - the brands, the language, and the parts standards 
> apparently have almost no contact across the divide.
> -Wes
> On Thursday, May 23, 2024 at 3:51:53 PM UTC-7 Patrick Moore wrote:
>
>> IMO this ties with the other customized Platypus featured here recently 
>> for "nicest-looking Platypus in list history," and it probably wins the 
>> award for "most attention paid to aesthetics" in list history. Note: I 
>> think very many of the Rivs posted are lovely to look at.
>>
>> Me, as with Mitch, "I am a guy." I am fully OC about my bikes for parts 
>> and builds and design (I remember most of the parts from my first 1970 full 
>> build), but not aesthetics, and it's interesting to see how others' 
>> passions turn out.
>>
>> Cerakoting is new to me; had to Google it. I see it differs from 
>> anodizing, but, how exactly? Too bad webmeisters are generally better fancy 
>> web page design than conveying information -- this for global corporate 
>> websites as well as bike websites; the latter on the whole do better. I 
>> gather that anodizing is colored (or not) oxidizing while cerakoting is a 
>> --- coating.
>>
>> One of the early links that DDG turned up said: "Anodized versus 
>> Cerakote: Which is better for your AR15?"
>>
>>
>>
>>
>> On Thu, May 23, 2024 at 9:56 AM Armand Kizirian <kiziria...@gmail.com> 
>> wrote:
>>
>>> Looks super fun. Good to know Paul can anodize parts like that! Also 
>>> interested to hear how the different size rides for you. Enjoy!
>>>
>>
>> -- 
> You received this message because you are subscribed to a topic in the 
> Google Groups "RBW Owners Bunch" group.
> To unsubscribe from this topic, visit 
> https://groups.google.com/d/topic/rbw-owners-bunch/Q_t8bGjApTc/unsubscribe
> .
> To unsubscribe from this group and all its topics, send an email to 
> rbw-owners-bun...@googlegroups.com.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/rbw-owners-bunch/3c3752ea-0c52-4890-95bc-b805b39aef5en%40googlegroups.com
>  
> <https://groups.google.com/d/msgid/rbw-owners-bunch/3c3752ea-0c52-4890-95bc-b805b39aef5en%40googlegroups.com?utm_medium=email&utm_source=footer>
> .
>
>

-- 
You received this message because you are subscribed to the Google Groups "RBW 
Owners Bunch" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to rbw-owners-bunch+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/rbw-owners-bunch/2c35687d-ea3e-4f51-9bc3-98474306c81fn%40googlegroups.com.

Reply via email to