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BMC Kaius 01 THREE vs Specialized Diverge 4 Expert - SRAM Rival XPLR

Both are gravel bikes at a similar price. Here is what actually separates them.

The short answer

For a typical all-round rider the Specialized Diverge 4 Expert - SRAM Rival XPLR comes out ahead (71% against 68%). That is not a universal verdict — change the terrain or the priority and the order can flip.

BMC

Kaius 01 THREE

68% for a typical rider

£4,999 at Brand website
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Specialized

Diverge 4 Expert - SRAM Rival XPLR

71% for a typical rider

£5,249 at Brand website
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What actually separates them

Price
The BMC Kaius 01 THREE is £250 cheaper — £4,999 against £5,249.
Weight
The BMC Kaius 01 THREE is 0.6kg lighter, which you notice on long climbs more than anywhere else.
Riding position
The Specialized Diverge 4 Expert - SRAM Rival XPLR sits you more upright (1.52 stack-to-reach against 1.45). The BMC Kaius 01 THREE is the more aggressive of the two — quicker if you can hold it, harder work if you cannot.
Tyre clearance
The BMC Kaius 01 THREE takes 52mm tyres against 50mm — the single most common thing buyers wish they had more of.
Mudguards
Only the Specialized Diverge 4 Expert - SRAM Rival XPLR takes mudguards, which decides whether it can be your winter bike.

Side by side

Spec Kaius 01 THREE Diverge 4 Expert - SRAM Rival XPLR
Price £4,999 £5,249
Weight 8.3 kg 8.9 kg
Frame carbon carbon
Groupset SRAM Rival XPLR AXS 1x13 electronic SRAM Rival AXS XPLR E1 1x13 electronic
Stack / reach 1.45 1.52
Tyre clearance 52 mm 50 mm
Lowest gear 25 in 23 in
Mudguard mounts No Yes
Comfort 66 78
Speed 51 36
Climbing 74 69
Value 0 0

Neither might be the right answer

This page assumes an average rider. Tell us how you actually ride and we will rank these two against everything else at the price.

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