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Chinese Carbon Road Bikes => Road Bike Frames, Wheels & Components => Topic started by: Irideslowly on October 04, 2021, 09:49:54 AM

Title: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 04, 2021, 09:49:54 AM
Hi everyone!

I've been looking for a budget left side power meter. I purchased this Groupset from ebay with the sensah empire 2x11. Bottom bracket is Bb86.


https://www.ebay.ca/itm/384295332667


I will be buying the velo build 099, 168 or the LTK268 from Longteng.

What budget power meter is compatible with this?

Would This work?
https://4iiii.com/canada/products/pdp/clearance-left-side-precision-powermeter-ride-ready/shimano-ultegra-fc-6800-172-5mm-previously-ridden/?utm_campaign=GoogleProdList&utm_source=Google&utm_medium=FProdList&gclid=CjwKCAjwzOqKBhAWEiwArQGwaPxC8uWQPQFNGoM93mfnJQ16e-YAb2XqpUytul5S1RUEaEB_jw7HWhoC9PEQAvD_BwE


I am waiting for your recommendations.

Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: FHS on October 04, 2021, 10:11:28 AM
This is a tough one if you are looking, specifically, for a left side crank PM to fit a Zrace. I think you may have more luck with a spider based PM, with the added benefit of a better estimated dual sided measurement.

Here's the Sigeyi spider for Zrace, but I don't know if it's sold separately. It's a heck of a deal if you plan to use Zrace anyway. You may be able to pick up this crank then source the rest of the components for cheaper?

https://www.sigeyishop.com/product/zracesigeyi-rx-power-meter-crankset/
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 04, 2021, 11:23:33 AM
This is a tough one if you are looking, specifically, for a left side crank PM to fit a Zrace. I think you may have more luck with a spider based PM, with the added benefit of a better estimated dual sided measurement.

Here's the Sigeyi spider for Zrace, but I don't know if it's sold separately. It's a heck of a deal if you plan to use Zrace anyway. You may be able to pick up this crank then source the rest of the components for cheaper?

https://www.sigeyishop.com/product/zracesigeyi-rx-power-meter-crankset/


The problem with this crank is, the bike uses bb86.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: FHS on October 04, 2021, 12:56:50 PM

The problem with this crank is, the bike uses bb86.

The ebay deacription says BSA DUB for the bottom bracket. I can't say for sure, but I believe all of your frame options are press fit 86. Either way, there isnt an issue getting a BSA or PF86 that fits a DUB spindle. I currently have a press fit 86 with a DUB bottom bracket.

Here's a BSA DUB for example...

https://www.backcountry.com/sram-dub-bsa-bottom-bracket?CMP_SKU=SRM00D4&MER=0406&skid=SRM00D4-ONECOL-S68MM73MM&mr:trackingCode=CEBB124F-072D-E811-8103-005056944E17&mr:referralID=NA&mr:device=m&mr:adType=plaonline&CMP_ID=PLA_GMm001&utm_source=Google&utm_medium=PLA&k_clickid=_k_CjwKCAjwzOqKBhAWEiwArQGwaO2g5Ns615SLSlltfJSubOH6Uf1fLrVfFpgqN7sCZzJ7iDwJi1g5YBoCQXEQAvD_BwE_k_&utm_id=go_cmp-12868123438_adg-121976329152_ad-517539118307_pla-490986922059_dev-m_ext-_prd-SRM00D4-ONECOL-S68MM73MM&gclid=CjwKCAjwzOqKBhAWEiwArQGwaO2g5Ns615SLSlltfJSubOH6Uf1fLrVfFpgqN7sCZzJ7iDwJi1g5YBoCQXEQAvD_BwE
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 04, 2021, 01:01:36 PM
Yes, the ebay description says BSA DUB, but i spoke directly with the seller. he will send a bb86.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: carbonazza on October 05, 2021, 03:00:44 AM
Yes, the ebay description says BSA DUB, but i spoke directly with the seller. he will send a bb86.
Maybe too late but here is a ZRACE crank with a Sigeyi PM:
https://www.aliexpress.com/item/1005001610258228.html
I tested both separately and they are good.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 05, 2021, 08:49:09 AM
I ordered the sigeyi power meter with cranks  + the entire  sensah empire 2x11 Groupset including the rotors, for 500usd on eBay. Thank you everyone
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: carbonazza on October 05, 2021, 09:21:08 AM
I ordered the sigeyi power meter with cranks  + the entire  sensah empire 2x11 Groupset including the rotors, for 500usd on eBay. Thank you everyone
What brakes did you choose ? JUIN, ZTTO, ZRACE, another one ?
With JAGWIRE compressionless hoses, the braking is surprisingly good with ZTTO and ZRACE.
And the Sensah empire groupset is great too.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 05, 2021, 09:43:15 AM
I chose the zrace.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: FHS on October 05, 2021, 10:08:43 AM
I ordered the sigeyi power meter with cranks  + the entire  sensah empire 2x11 Groupset including the rotors, for 500usd on eBay. Thank you everyone

Wow, that's a great deal. Grats!
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 05, 2021, 11:07:53 AM
For anyone interested in knowing how I got such a good price.

Look at the sellers from China
Send them an offer, even if the listing does not give you the option of sending an offer.

They are usually open to negociate.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: FHS on October 05, 2021, 04:06:45 PM
How were you able to get the Zrace crank with the Sigeyi PM included in the set?
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 05, 2021, 05:27:04 PM
The z race cranks came packaged with the sensah empire group set.

The seller was also selling the sigiyi power meter. I asked him to include it for a good price.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 09, 2021, 06:27:29 AM
Question for all,

my ltk-268 frame from longteng requires a bb86 bottom bracket.

I purchased a cheap bb86 from sigiyi/zrace with my crankset.

Is it worth paying 30-50$ to upgrade to a Shimano BB86 Bottom Bracket or something similar?

like this : https://www.aliexpress.com/item/32854261988.html?spm=a2g0o.productlist.0.0.4a44240d42JNmt&algo_pvid=4535202d-97f2-4eba-915e-fca837c24ed6&algo_exp_id=4535202d-97f2-4eba-915e-fca837c24ed6-0&pdp_ext_f=%7B%22sku_id%22%3A%2210000013315405293%22%7D


BB72-41 or RS500-PB
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: SVChucko on October 09, 2021, 04:04:50 PM
Ride that BB until it wears out. Then replace it with something better. There are lots of choices, Shimano is far from the only game in town.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: FHS on October 11, 2021, 10:03:25 AM
Question for all,

my ltk-268 frame from longteng requires a bb86 bottom bracket.

I purchased a cheap bb86 from sigiyi/zrace with my crankset.

Is it worth paying 30-50$ to upgrade to a Shimano BB86 Bottom Bracket or something similar?

like this : https://www.aliexpress.com/item/32854261988.html?spm=a2g0o.productlist.0.0.4a44240d42JNmt&algo_pvid=4535202d-97f2-4eba-915e-fca837c24ed6&algo_exp_id=4535202d-97f2-4eba-915e-fca837c24ed6-0&pdp_ext_f=%7B%22sku_id%22%3A%2210000013315405293%22%7D


BB72-41 or RS500-PB

Just a head's up, I believe that Zrace spindle requires a DUB 29mm bearing set for the bottom bracket, so a straight swap with a Shimano bottom bracket with a 24mm bearing won't work. I'm not sure how many Chinese options there are for a DUB in the same spec, but other options are extremely limited and pretty pricey.

Is any BB upgrade worth it? Depends on what you are hoping to achieve. From what I understand, for press fit bottom brackets, creaking would bet he biggest issue.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: SVChucko on October 11, 2021, 02:08:30 PM
Both ZTTO and ZRACE offer Dub BBs for PF86:

https://www.aliexpress.com/item/1005002460426970.html
https://www.aliexpress.com/item/4001055202016.html
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 26, 2021, 05:20:51 PM
Update

I received the groupset.
My frame requires a bb86 bottom bracket.

The seller sent me a Zrace DUB bb92.

Will it fit?

Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: carbonazza on October 26, 2021, 05:38:55 PM
Update

I received the groupset.
My frame requires a bb86 bottom bracket.

The seller sent me a Zrace DUB bb92.

Will it fit?

The picture doesn't load on my mobile...
But if you zoom it should show 86.5-92mm would be fine.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: FHS on October 26, 2021, 06:14:23 PM
Update

I received the groupset.
My frame requires a bb86 bottom bracket.

The seller sent me a Zrace DUB bb92.

Will it fit?

Yeah, no worries, it'll fit.
Title: Re: What left side crank power meter for Sensah empire 2x11 with Zrace cranks?
Post by: Irideslowly on October 26, 2021, 06:15:28 PM
Thanks for the reply.

I hope this thread can help someone.

I will post a picture once the bike is built.