Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the July Giveaway for an Electric Commuter Bike from KBO Bike


New 3 speed hub with coaster brake: brake squeals and sticks
#1
I recently purchased a used (nearly new) Sun Traditional adult Tricycle, 2016  model, and attempted to add on a brand new 3 speed conversion kit purchased through Amazon. The kit is made by Sturmey Archer, and intended for Sun trikes like mine from 2015 and newer.

As far as I can tell, I've installed the hub correctly. It shifts smoothly and runs well.

However, the coaster brake makes a weird squealing noise when applied, and often sticks a bit.

Here is a link to a short video, shot through the rear basket. First i cycle through all gears, then demonstrate the weird noise it makes when the brake is applied. Higher speed = louder noise, and more sticking when I resume pedaling.  

https://youtu.be/kRiYaPo6F_0

It does not make the noise when I test the hub and brake by lifting the rear wheel and turn the pedals with the other hand, but only when I ride. Fwiw, I'm a thin person,  and the trike fits me just fine, so I'm not "overstressing" the brake with my own weight.

Does anyone have any idea if this could be a defective hub, or if I've made an installation error? I'm hoping to avoid visiting the local bike shop, in order to save some money, but will do so if needed.

I certainly appreciate any help offered.

Thanks!
Laura
  Reply
#2
(08-01-2017, 12:14 PM)unusualhuman Wrote:  I recently purchased a used (nearly new) Sun Traditional adult Tricycle, 2016  model, and attempted to add on a brand new 3 speed conversion kit purchased through Amazon. The kit is made by Sturmey Archer, and intended for Sun trikes like mine from 2015 and newer.

As far as I can tell, I've installed the hub correctly. It shifts smoothly and runs well.

However, the coaster brake makes a weird squealing noise when applied, and often sticks a bit.

Here is a link to a short video, shot through the rear basket. First i cycle through all gears, then demonstrate the weird noise it makes when the brake is applied. Higher speed = louder noise, and more sticking when I resume pedaling.  
https://hghreviewer.com/

It does not make the noise when I test the hub and brake by lifting the rear wheel and turn the pedals with the other hand, but only when I ride. Fwiw, I'm a thin person,  and the trike fits me just fine, so I'm not "overstressing" the brake with my own weight.

Does anyone have any idea if this could be a defective hub, or if I've made an installation error? I'm hoping to avoid visiting the local bike shop, in order to save some money, but will do so if needed.

I certainly appreciate any help offered.

Thanks!
Laura

Nice kit, have u made it by your self ? Or u just bought it ?!!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
624
04-16-2021, 10:05 PM
Last Post: Jesper
 
622
11-29-2020, 11:28 AM
Last Post: Jeff L
 
886
11-18-2020, 04:06 AM
Last Post: Jesper
 
1,194
08-18-2020, 08:11 PM
Last Post: mtnbikeracer76
Question
1,007
08-01-2020, 08:12 AM
Last Post: Jesper
 
822
06-06-2020, 03:20 AM
Last Post: jonsio

Forum Jump:

[-]
10 Latest Posts
COLNAGO SUPER (unknown year)
Today 10:36 PM
Hi
Today 10:17 AM
Hallo..
Today 05:46 AM
Shifter Doesn't Have Clicking Sound
Today 12:01 AM
Looking for reliable bikes for gf and me...
Yesterday 09:03 PM
One expensive lock vs two cheaper locks?
Yesterday 10:41 AM
Sling Cycles Tagati
Yesterday 12:10 AM
What are your best biking places in your...
07-21-2021 02:30 PM
Bike won't shift gears at all, please he...
07-19-2021 07:51 AM
Crank Puller Failing to Pull Crank
07-19-2021 12:00 AM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
29 posts
no avatar 2. ReapThaWhirlwind
11 posts
no avatar 3. JR Namida
9 posts
no avatar 4. Zviedrs
6 posts
no avatar 5. Criminal
5 posts