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Topics - david.platt@mac.com

#1
Service & Repair / Battery terminal grease
September 04, 2022, 09:50:19 AM

eBike battery connection problem-Electrical connector grease case study


https://support.newgatesimms.com/ebike-battery-connection-problem-electrical-connector-grease-case-study/
#2
Shimano MF-TZ31-7 Speed MTB Bicycle Bike Cassette Freewheel Screw-On 14-34T

Like only having 1 to 5.5 speeds.

Anybody try this yet.?


The RadCity 5 + has a 11-34T and 11-13-15-18-21-24-34 front is single ratio of 46T


Anybody find anything other than the OEM unit that is still 11-34T. ?
#4
RadCity / Thinking of water bottles
July 07, 2022, 04:04:13 PM
RadCity5 + step over.
Where do you all keep a water bottle on that particular one. ?
#5
The first thing I noticed after switching out from the stock VEE tire that came with the RC5+ was increased comfort and stability.

Onto gravel or back onto pavement making a transition seems much more secure with no wobble  or floating at the side of the road. And that is with just the rear switched out.

Also I am wanting to do a little hard packed dirt roads as not all of my best routes are on only pavement. Yay now I am not as afraid of dirt roads.

The Evos are the foldable ones and they were extremely easy to install.

These tires have the exact same tread as the MARATHON E-PLUS.(e-50)
Using the exact same watts 27.5 at 60 psi and 24.5 watts at 70 psi.

They are a little lighter so only e-25 rated and not e-50 as the heavier and newer E-PLUS.
Tires are getting hard to get right now because of supply chain issues.

PS, the ENERGIZER PLUS also looks interesting too, they are a little lighter again and have even better rolling results. 47-584 (27.5x1.75)

And the Schwalbe Big Ben Plus HS439 27.5 inch are the ultimate OEM replacement tire.
To save money look no further

https://www.tradeinn.com/bikeinn/en/schwalbe-big-ben-plus-hs439-27.5-tyre/137411681/p?_gl=1*1r3uryv*_up*MQ..&gclid=EAIaIQobChMIr8XE-rrW-AIV5vTjBx07yQihEAQYAyABEgI7VfD_BwE&gclsrc=aw.ds

I found this article about the mondials
https://www.sevendaycyclist.com/schwalbe-marathon-mondial-tyres







#6

I Started looking at tires for the RC5+ and the I realized just how much there is to learn! I wanted to put this info all in one place.

RadCity5+

From Rad :

"Double wall aluminum alloy, 36 hole
Rim width: 25 mm."

"27.5" x 2.0", e-bike rated with puncture-resistant liner *tires received may not include branding."

The rims that came with say :

ETRTO 584x24  Alloy 6061-T6

6061 is a precipitation-hardened aluminium alloy, containing magnesium and silicon as its major alloying elements. Originally called "Alloy 61S", it was developed in 1935. It has good mechanical properties, exhibits good weldability, and is very commonly extruded. Wikipedia

By applying the T6 temper to 6061 aluminum, the typical yield strength nearly quadruples, from 8 ksi to about 35 ksi (ksi is a unit of stress).

The tires that came on the RC5+ say

                         : < ROTATION VEE TIRE CO
                         : 50/100-584  M/C  37B MOPED
                         : 27.5 X2.0 (50-584)

                          :35-65 psi / 2.5-4.5 bar / 240 - 450 kPa.

Replacement tires on Rads site: Kenda Kontact - 27.5" x 1.95"

Does VEE TIRE CO make Kenda's ? Isn't it a bit misleading If they don't.

Just a bunch of random specifications obviously designed for someone's job security inmho.

https://www.parktool.com/blog/repair-help/tire-wheel-and-inner-tube-fit-standards

https://bike.bikegremlin.com/285/bicycle-tyre-dimensions/

https://www.lightbicycle.com/newsletter/Road-Bike-Tire-Width-Charts.html

https://issuu.com/wtb1982/docs/17_wtbcatalog-consumer-internationa/27

https://www.cateye.com/data/resources/Tire_size_chart_ENG_151106.pdf

Ok my heads spinning now so I'm going to work on this and edit it some more later 🙂

Most important dimensions  to remember are 27.5 X2.0 or (50-584) metric.
They also fit into the 650B reality somehow
https://www.fullcycle.ca/product-list/tires-tubes-1101/tires-1103/650b-1235/?rb_sz=27%2E5%20x%202%2E0