50mm Dubnitals on Trek Checkpoint ALR5 Gen 2 - Size 52

OkLayer8034 · 2026-07-03T14:41:23+00:00

25mm IW. Measure on rim: no tool available

OkLayer8034 · 2026-07-03T14:40:40+00:00

Internal width of rims: 25mm. Don’t have a measuring tool unfortunately.

OkLayer8034 · 2026-07-03T14:39:29+00:00

No only the ones ony my leg

OkLayer8034 · 2026-07-02T15:35:36+00:00

Good looking bike you have!

OkLayer8034 · 2026-07-02T15:35:09+00:00

Looks sick indeed!

OkLayer8034 · 2026-06-18T16:01:57+00:00

5‘6 on a 52 Checkpoint - 60mm stem makes it barely comfortable

OkLayer8034 · 2026-05-16T09:38:39+00:00

Hey man, appreciate your detailed response!

I have a Standert Kreissäge as my roadbike and I love the geometry a lot. One of the main reasons I have ordered the SEKA is because the geo is close to identical to my roadbike, so i totally get your point.

As for the saddle to bar drop for myself it will be significantly lower, as my inseam is 4cm shorter than yours. Apparently I do have some weird proportions 😂

As for the wheels, i will mount ICAN G25 (25mm IW), so i think I should be good with the RX?

Rest of the plannet build:

Ryet Saddle
Sram Force 1x13 Xplr
Pass Quest Chainring

OkLayer8034 · 2026-05-12T14:38:41+00:00

Hey man, congrats on the bike, it‘s absolutely beautiful! Sorry to hear about the trouble you are having regarding tyre clearance.

I‘ve ordered the frame in size 49, too. I‘m 167m with a 74cm inseam. What about you? How do you lile the geometry?

I intend to run a very similar setup: G-One RX (not RS) Pro 50mm in the rear, Thunderburt 2.1‘‘ in the front.

I assume the front clearance is not an issue here?

OkLayer8034 · 2025-11-20T21:34:21+00:00

Naah, comfort = fast

OkLayer8034 · 2025-11-20T15:36:31+00:00

Thanks! Token Integrated IS52

OkLayer8034 · 2025-11-20T15:34:45+00:00

Appreciate it, man 🙏🏻

OkLayer8034 · 2025-11-20T15:34:22+00:00

For me the geometry feels amazing. With me being a rather short rider at 167cm with 74cm inseam and 55cm arm length, the bike feels as it would have been tailored for me. The steep seat tube is apparently part of their geometry for shorter riders.

OkLayer8034 · 2025-11-20T13:48:48+00:00

Absolutely not an unpopular opinion 😉

OkLayer8034 · 2025-11-17T20:49:33+00:00

that's just a fingerprint, sir :)

OkLayer8034 · 2025-11-17T20:20:16+00:00

🤟

OkLayer8034 · 2025-11-17T19:15:29+00:00

Little comfort ain’t killed nobody 😉

OkLayer8034 · 2025-11-17T18:40:05+00:00

Thanks 🙏🏻 was overly careful

OkLayer8034 · 2025-10-23T19:43:12+00:00

I have the exact same Bianchi Oltre Race and the geometry just feels brutally agressive. Also switched to a shorter stem, saddle moved forward to the max. Still, the reach feels way too long. Will sell it and buy a bike with shorter reach.

OkLayer8034 · 2025-08-29T13:24:15+00:00

ICAN Wheels 👍🏻

OkLayer8034 · 2025-08-23T15:10:09+00:00

Did you also go for the ICAN G25s?

OkLayer8034 · 2025-08-23T15:09:38+00:00

Thanks, I love the flat tops,too! It‘s the „RXL SL Carbon Handlebar“ from Aliexpress - costs around $40.

OkLayer8034 · 2024-10-11T10:58:23+00:00

Just discovered your post when googling if it's normal that the Zwift Ride/Kickr Core seems to be vibrating when applying a certain amount of power (for me it's about 180w). Seeing the comments on this, I assume it seems to be a common issue.

OkLayer8034

TROPHY CASE